Month: October 2022

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 90-59-5, formula is C7H4Br2O2, Name is 3,5-Dibromo-2-hydroxybenzaldehyde. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Recommanded Product: 3,5-Dibromo-2-hydroxybenzaldehyde.

Pariat, Thibault;Stoerkler, Timothee;Diguet, Clement;Laurent, Adele D.;Jacquemin, Denis;Ulrich, Gilles;Massue, Julien research published 《 Dual Solution-/Solid-State Emissive Excited-State Intramolecular Proton Transfer (ESIPT) Dyes: A Combined Experimental and Theoretical Approach》, the research content is summarized as follows. Excited-state intramol. proton transfer (ESIPT) dyes typically show strong solid-state emission, but faint fluorescence intensity is observed in the solution state owing to detrimental mol. motions. This article investigates the influence of direct (hetero)arylation on the optical properties of 2-(2′-hydroxyphenyl)benzoxazole ESIPT emitters. The synthesis of two series of ESIPT emitters bearing substituted neutral or charged aryl, thiophene, or pyridine rings is reported herein along with full photophys. studies in solution and solid states, demonstrating the dual solution-/solid-state emission behavior. Depending on the nature of substitution, several excited-state dynamics are observed: quant. or partially frustrated ESIPT process or deprotonation of the excited species. Protonation studies revealed that pyridine substitution triggered a strong increase of quantum yield in the solution state for the protonated species owing to favorable quinoidal stabilization. These attractive features led to the development of a second series of dyes with alkyl or aryl pyridinium moieties showing strong tunable solution/solid fluorescence intensity. For each series, ab initio calculations helped rationalize and ascertain their behavior in the excited state and the nature of the emission observed by the exptl. results.

90-59-5, 3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes.

3,5-Dibromosalicylaldehyde, also known as 3,5-Dibromosalicylaldehyde, is a useful research compound. Its molecular formula is C7H4Br2O2 and its molecular weight is 279.91 g/mol. The purity is usually 95%.

3,5-Dibromosalicylaldehyde reacts with alkyl cyanoacetates in the presence of ammonium acetate to yield 4H- chromenes. 3,5-Dibromosalicylaldehyde can be used in the synthesis of Schiff base and can be used as reactant for synthesis of Schiff base ligands which forms mononuclear complexes with copper(II), nickel(II), zinc(II) and cobalt(II).

3,5-Dibromosalicylaldehyde is a copper complex that has been synthesized from 3,5-dibromosalicylaldehyde and copper chloride. FTIR spectroscopy revealed that the coordination geometry of the copper complex is octahedral with two nitrogen atoms in the equatorial plane. The presence of hydrogen bonding interactions was confirmed by homologous protein adsorption experiments. This chemical structure was determined using X-ray crystallography and fluorescence probe experiments. The copper complex showed high affinity for malonic acid, which is an ester hydrochloride. The molecular mechanism of this interaction is based on adsorption, which occurs through hydrogen bonding interactions and hydrophobic interactions. Structural analysis revealed that the polymeric matrix consists of a three-dimensional network of crosslinked chains, while FTIR analysis indicated a possible disulfide bond between two cysteine residues., Recommanded Product: 3,5-Dibromo-2-hydroxybenzaldehyde

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 2576-47-8, formula is C2H7Br2N, Name is 2-Bromoethylamine hydrobromide. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Application In Synthesis of 2576-47-8.

Pareja-Rivera, Carina;Solis-Ibarra, Diego research published 《 Reversible and Irreversible Thermochromism in Copper-Based Halide Perovskites》, the research content is summarized as follows. Copper-based layered perovskites have shown abundant phase transitions and thermochromic behaviors. However, there are very few cases of perovskites with irreversible transitions. Here, the thermochromic behavior of two perovskites (CEA)₂CuCl₄ and (BEA)₂CuCl₄ is discussed, where CEA = 2-chloroethylammonium and BEA = 2-bromoethylammonium, the latter of which is reported for the first time. These materials exhibit a reversible and irreversible thermochromic behavior determined by the nature of the organic cation. Using NMR, X-ray diffraction, and optical absorption, it was possible to investigate the mechanism for this transition: a topochem. exchange reaction between the organic and inorganic halides in (BEA)₂CuCl₄ to yield the mixed-halide perovskite (BEA)_1.1(CEA)_0.9CuCl_3.1Br_0.9. These materials and the fundamental principles shown herein have potential use as low-cost irreversible thermochromic sensors and their design.

2576-47-8, 2-Bromoethylamine hydrobromide is a useful building block for proteomics research.
2-Bromoethylamine hydrobromide is used in the synthesis of analogs of 5,​10,​15,​20-​tetrakis(1-​methylpyridinium-​4-​yl)​porphyrin (TMPyP4) as inhibitors of human telomerase. It is also used to prepare SB-705498, a potent, selective and orally bioavailable TRPV1 antagonist. It is used to construct C2-symmetric imidazolidinylidene ligands with a dioxolane backbone.
2-Bromoethylamine Hydrobromide is used in the synthesis of analogs of 5,​10,​15,​20-​tetrakis(1-​methylpyridinium-​4-​yl)​porphyrin (TMPyP4) as inhibitors of human telomerase. It is also used to prepare SB-705498, a potent, selective and orally bioavailable TRPV1 antagonist.
2-Bromoethylamine hydrobromide is a nonsteroidal anti-inflammatory drug that is used to treat inflammation and pain. It is a prodrug that is hydrolyzed in vivo to its active form, 2-Bromoethylamine hydrobromide. The bound form of this drug has been shown to inhibit the development of cell nuclei in the nucleus of cells. This drug also inhibits the production of nitric oxide, which leads to cell death by necrosis. 2-Bromoethylamine hydrobromide has been shown to have an inhibitory effect on the activity of glycol ethers, which are used as solvents for resins in coatings and adhesives., Application In Synthesis of 2576-47-8

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. 4224-70-8, formula is C6H11BrO2, Name is 6-Bromohexanoic acid. Organic compounds having carbon bonded to bromine are called organic bromides. Product Details of C6H11BrO2.

Pang, Zeyang;Li, Qizhen;Jia, Yuexiao;Yan, Weixiao;Qi, Jie;Guo, Yuan;Hu, Fupin;Zhou, Dejian;Jiang, Xingyu research published 《 Controlling the pyridinium-zwitterionic ligand ratio on atomically precise gold nanoclusters allowing for eradicating Gram-positive drug-resistant bacteria and retaining biocompatibility》, the research content is summarized as follows. Infections caused by multidrug-resistant (MDR) bacteria are an increasing global healthcare concern. In this study, we developed a dual-ligand-functionalised Au₂₅(SR₁)_x(SR₂)_18-x-type gold nanocluster and determined its antibacterial activity against MDR bacterial strains. The pyridinium ligand (SR₁) provided bactericidal potency and the zwitterionic ligand (SR₂) enhanced the stability and biocompatibility. By optimizing the ligand ratio, our gold nanocluster could effectively kill MDR Gram-pos. bacteria via multiple antibacterial actions, including inducing bacterial aggregation, disrupting bacterial membrane integrity and potential, and generating reactive oxygen species. Moreover, combining the optimized gold nanocluster with common antibiotics could significantly enhance the antibacterial activity against MDR bacteria both in in vitro and animal models of skin infections. Furthermore, the fluorescence of the gold nanocluster at the second near-IR (NIR-II) biol. window allowed for the monitoring of its biodistribution and body clearance, which confirmed that the gold nanoclusters had good renal clearance and biocompatibility. This study provides a new strategy to combat the MDR challenge using multifunctional gold nanomaterials.

4224-70-8, 6-bromohexanoic acid is an organobromine compound comprising hexanoic acid having a bromo substituent at the 6-position. It derives from a hexanoic acid.
6-Bromohexanoic acid is a useful research compound. Its molecular formula is C6H11BrO2 and its molecular weight is 195.05 g/mol. The purity is usually 95%.
6-Bromohexanoic acid is useful for the preparation of anti-CTLA4 compounds as antitumor agents.
6-Bromohexanoic acid is a fatty acid that has been shown to be an effective agent for the treatment of cancer. It is used in gene therapy to inhibit the growth of cancer cells by binding to and then activating transcription factors. 6-Bromohexanoic acid can also be used as a chemotherapeutic agent and has been shown to cause apoptosis in monoclonal antibody-treated cells. 6-Bromohexanoic acid has pharmacokinetic properties that are similar to those of other fatty acids. The reaction solution was found to have high chemical stability, which may be due to the presence of nitrogen atoms. This reaction solution was found to adsorb onto the surface of monoclonal antibodies and cell culture, altering their properties., Product Details of C6H11BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. 4897-84-1, formula is C5H9BrO2, Name is Methyl 4-bromobutanoate. Organic compounds having carbon bonded to bromine are called organic bromides. HPLC of Formula: 4897-84-1.

Pan, Zhaoping;Li, Xiang;Wang, Yujia;Jiang, Qinglin;Jiang, Li;Zhang, Min;Zhang, Nan;Wu, Fengbo;Liu, Bo;He, Gu research published 《 Discovery of Thieno[2,3-d]pyrimidine-Based Hydroxamic Acid Derivatives as Bromodomain-Containing Protein 4/Histone Deacetylase Dual Inhibitors Induce Autophagic Cell Death in Colorectal Carcinoma Cells》, the research content is summarized as follows. Bromodomain-containing protein 4 (BRD4) and histone deacetylases (HDAC) are both attractive epigenetic targets in cancer and other chronic diseases. Based on the integrated fragment-based drug design, synthesis, and in vitro and in vivo evaluations, a series of novel thieno[2,3-d]pyrimidine-based hydroxamic acid derivatives are discovered as selective BRD4-HDAC dual inhibitors. Compound 17c is the most potent inhibitor for BRD4 and HDAC with IC₅₀ values at nanomolar levels, as well as the expression level of c-Myc, and increases the acetylation of histone H3. Moreover, 17c presents inhibitory effects on the proliferation of colorectal carcinoma (CRC) cells via inducing autophagic cell death. It also has a good pharmacokinetic profile in rats and oral bioavailability of 40.5%. In the HCT-116 xenograft in vivo models, 17c displays potent inhibitory efficiency on tumor growth by inducing autophagic cell death and suppressing IL6-JAK-STAT signaling pathways. Our results suggest that the BRD4-HDAC dual inhibition might be an attractive therapeutic strategy for CRC.

4897-84-1, Methyl 4-bromobutyrate,also as known as 4-Bromobutyric acid methyl ester, is a useful research compound. Its molecular formula is C5H9BrO2 and its molecular weight is 181.03 g/mol. The purity is usually 95%.
4-Bromobutyric acid methyl ester is a synthetic compound that can be used to inhibit the activity of the G1 phase cyclin-dependent kinases. It has been shown to inhibit protein synthesis by alkylating the amino groups of proteins and fatty acids. 4-Bromobutyric acid methyl ester also inhibits the growth of cancer cell lines, such as renal carcinoma cells. The mechanism of action for this drug is not well understood, but it may be due to its ability to bind with monoclonal antibodies and enter kidney cells by passive diffusion., HPLC of Formula: 4897-84-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 5392-10-9, formula is C9H9BrO3, Name is 2-Bromo-4,5-dimethoxybenzaldehyde. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. COA of Formula: C9H9BrO3.

Pan, Wan-Chen;Wang, Yi-Chun;Li, Tuan-Jie;Liu, Jian-Quan;Wang, Xiang-Shan research published 《 An efficient synthesis of 6-benzyl-2-arylthieno[2,3-d]pyrimidin-4(3H)-ones catalyzed by HCl involving a Friedel-Crafts alkylation reaction》, the research content is summarized as follows. Aldehydes could underwent not only the subsequent condensation and cyclization with 2-aminothiophene-3-carboxamides to build a pyrimidine ring, but also a Friedel-Crafts alkylation reaction with thiophene moiety to gave unexpected 6-benzyl-2-arylthieno[2,3-d]pyrimidin-4(3H)-ones I [R¹ = H, Cl, F, Me, MeO; R² = H, Cl, F, MeO; Ar = Ph, 4-MeC₆H₄, 4-EtC₆H₄, 4-n-PrC₆H₄, 4-ClC₆H₄] and II [R³ = 2-MeOC₆H₄, 2-Br-4-FC₆H₃, 2-furyl, etc.] in good yields catalyzed by concentrated HCl.

COA of Formula: C9H9BrO3, 2-Bromo-4,5-dimethoxybenzaldehyde is a useful research compound. Its molecular formula is C9H9BrO3 and its molecular weight is 245.07 g/mol. The purity is usually 95%.
2-Bromo-4,5-dimethoxybenzaldehyde is a synthetic compound that has been shown to be an effective agent for inducing apoptosis in leukemia cells. It is an efficient method for synthesizing the compound and ha2-Bromo-4,5-dimethoxybenzaldehyde induces cell death by topoisomerase-mediated DNA cleavage, which results in chromosomal fragmentation and high levels of reactive oxygen species in the cell., 5392-10-9.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 823-78-9, formula is C7H6Br2, The most pervasive is the naturally produced bromomethane. Reference of 823-78-9

Pan, Ming;Shao, Ying-Bo;Zhao, Qun;Li, Xin research published 《 Asymmetric Synthesis of N-N Axially Chiral Compounds by Phase-Transfer-Catalyzed Alkylations》, the research content is summarized as follows. A wide range of N-N axially chiral quinazolinone derivatives I (R¹ = Ph, prop-1-en-2-yl, 3-chlorphenyl, etc.; R² = Ph, 1-naphthyl, prop-1-ynyl, etc.; R³ = Ph, t-Bu, 3-bromophenyl, etc.; R⁴ = H, 7-Me, 6-I, 5-Cl, etc.) were prepared by phase-transfer catalysis in high yields with excellent stereoselectivities. Furthermore, the synthetic utility of the protocol was proved by large-scale reaction and transformation of the product. D. functional theory calculations provide insight into the mechanism.

Reference of 823-78-9, 3-Bromobenzyl bromide undergoes reduction with diethylzinc in the presence of Pd(PPh3)4 to yield corresponding hydrocarbon.

3-Bromobenzyl bromide is a useful research compound. Its molecular formula is C7H6Br2 and its molecular weight is 249.93 g/mol. The purity is usually 95%.

3-Bromobenzyl bromide is a molecule that has been synthesized and shown to have anticancer activity. It inhibits the activity of cancer cells by binding to amines in these cells and preventing the formation of hydrogen bonds between these molecules. 3-Bromobenzyl bromide has also been shown to selectively inhibit the activity of NS5B polymerase, an enzyme that is important in the replication of the hepatitis C virus. The synthetic nature of this molecule makes it an attractive target for analytical methods such as nuclear magnetic resonance spectroscopy. This molecule also shows significant cytotoxicity against cancer cell lines in vitro, as well as inducing tumor necrosis factor-alpha (TNF-α) production in lps-stimulated murine macrophages., 823-78-9.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 4224-70-8, formula is C6H11BrO2, Name is 6-Bromohexanoic acid. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Safety of 6-Bromohexanoic acid.

Pan, Jun-Lin;Xu, Chu-Ran;Zeng, Fu-Rong;Liang, Yang;Zhang, Tao;Xu, Jing;Li, Zi-Long;Li, Zi-Chen research published 《 Castor Oil-Based Bioplastics via Polyesterification: Synthesis, Characterization, and Functionalization》, the research content is summarized as follows. Synthesis and application of biobased polymers are at the forefront of polymer science. Herein, we report the synthesis, characterization, and functionalization of castor oil-based bioplastics. At first, polymer P1 was synthesized via polyesterification by using monomer 11-bromoundecanoic acid (1) to demonstrate the feasibility of this step-growth polymerization method. The success of this polycondensation technique relies on the high substitution efficiency between terminal groups, carboxylic acid, and carbon-bromide moieties under alk. conditions. Subsequently, copolymers P2-P5 with varied compositions were obtained by random copolymerization of monomers 1 and 6-bromohexanoic acid (2) in different feed ratios. Linear pos. correlation is disclosed between the crystallization (T_c) and melting (T_m) temperatures of P1-P5 and the molar fraction of 1 within these specimens. Differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) results illustrate good crystallinity of these bioplastics. Furthermore, the degradation of polymers P1-P5 is propelled by an external basic environment while hindered by their intrinsic hydrophobicity, indicating that alkalinity and composition are two essential factors to manipulate the degradation behaviors of biobased polyesters in the bulk state. Ultimately, polymerization of 1 in the presence of 1-pyrenebutyric acid (3), an end-capping agent, was carried out to yield α-pyrene functionalized polymer P7. This material is capable of serving as a practical fluorescent probe and multiwalled carbon nanotube (MWNT) dispersion stabilizer. Polyesterification reported herein represents a facile and cost-effective synthetic strategy and shows great prospects in sustainable polymer materials.

4224-70-8, 6-bromohexanoic acid is an organobromine compound comprising hexanoic acid having a bromo substituent at the 6-position. It derives from a hexanoic acid.
6-Bromohexanoic acid is a useful research compound. Its molecular formula is C6H11BrO2 and its molecular weight is 195.05 g/mol. The purity is usually 95%.
6-Bromohexanoic acid is useful for the preparation of anti-CTLA4 compounds as antitumor agents.
6-Bromohexanoic acid is a fatty acid that has been shown to be an effective agent for the treatment of cancer. It is used in gene therapy to inhibit the growth of cancer cells by binding to and then activating transcription factors. 6-Bromohexanoic acid can also be used as a chemotherapeutic agent and has been shown to cause apoptosis in monoclonal antibody-treated cells. 6-Bromohexanoic acid has pharmacokinetic properties that are similar to those of other fatty acids. The reaction solution was found to have high chemical stability, which may be due to the presence of nitrogen atoms. This reaction solution was found to adsorb onto the surface of monoclonal antibodies and cell culture, altering their properties., Safety of 6-Bromohexanoic acid

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 629-04-9, formula is C7H15Br, Name is 1-Bromoheptane. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Recommanded Product: 1-Bromoheptane.

Pai, Min-Hao;Hu, Chien-Chieh;Liou, Guey-Sheng research published 《 Enhancement of Electrochromic Switching Properties with Troger’s Base-Derived Intrinsic Microporous Polyamide Films》, the research content is summarized as follows. The formation of Troger’s Base (TB) configuration is a useful approach to synthesize polymers of intrinsic microporosity (PIM). Herein, the V-shaped TB scaffold is incorporated to prepare electrochromic (EC) polyamide with electroactive triphenylamine (TPA) moiety. The presence of intrinsic microporosity derived from inefficient packing of TB scaffolds can facilitate the counterions diffusion between electroactive species and electrolytes. Consequently, the resulting TB-based polyamide exhibits enhanced EC behaviors, such as a lower driving potential, reduced the difference of redox potentials ΔE, and shorter switching response time compared to the corresponding EC counterpart polyamide.

629-04-9, 1-Bromoheptane is a useful research compound. Its molecular formula is C7H15Br and its molecular weight is 179.1 g/mol. The purity is usually 95%.
1-Bromoheptane is a reagent that is used for the preparation of alkylthiophienylzinc chloride.
1-Bromoheptane is a reactive compound that is used in the preparation of p-hydroxybenzoic acid, which is an intermediate in the synthesis of many natural compounds. 1-Bromoheptane has been shown to have biological properties and to inhibit mitochondrial membrane potential. It also causes cell lysis and hepatic steatosis in mice. This compound has been shown to inhibit the activity of enzymes such as acetylcholinesterase, butyrylcholinesterase, and carboxylesterase. 1-Bromoheptane can be used as a model for studying the effects on congestive heart failure by increasing cardiac workloads or decreasing myocardial contractility., Recommanded Product: 1-Bromoheptane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 6911-87-1, formula is C7H8BrN, The most pervasive is the naturally produced bromomethane. Computed Properties of 6911-87-1

Ouyang, Wensen;Liu, Bairong;He, Yi;Wen, Yanmei;Gao, Yang;Huo, Yanping;Chen, Qian;Li, Xianwei research published 《 Modular construction of functionalized anilines via switchable C-H and N-alkylations of traceless N-nitroso anilines with olefins》, the research content is summarized as follows. A switchable C-H alkylation and N-alkylation with great chemo- and site-selectivity enabled by N-nitroso anilines was developed, affording functionalized anilines, hydrazines and heterocycles. The exploration of strain-release as the key driving force with structurally diverse olefins enabled mild and practical sequential C-H and C-C or C-O cleavage. Notably, N-nitroso anilines could act as traceless directing groups to enable indole synthesis via dehydrogenative coupling with styrenes.

6911-87-1, 4-Bromo-N-methylaniline is a aniline based compound known to exhibit mutagenic properties.
4-Bromo-N-methylaniline is a useful research compound. Its molecular formula is C7H8BrN and its molecular weight is 186.05 g/mol. The purity is usually 95%.
4-Bromophenylmethylamine is an organic compound that has anti-inflammatory properties and is used as a pharmaceutical. It belongs to the group of amines. The hydrolysis of 4-bromophenylmethylamine by hydrochloric acid produces phenol and bromamine (NHBr). The reaction system can be used to synthesize a number of compounds, including anilines, benzofurans, and other aromatic compounds. 4-Bromophenylmethylamine reacts with muscle tissue in a similar manner as acetaminophen does. This drug also has been shown to have significant effects on the energy metabolism in the muscles of rats that are given carbon source., Computed Properties of 6911-87-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Recommanded Product: 4-Bromobenzene-1,2-diamine.

Ouyang, Mi;Dai, Dacheng;Hu, Xuming;Li, Yuwen;Chen, Zhangxin;Tao, Bowen;Zhang, Lina;Li, Weijun;Dong, Yujie;Bai, Ru;Lv, Xiaojing;Zhang, Cheng research published 《 In-situ preparation and electrochromic properties of TiO₂ / PTPA-HTAN core-shell nanocomposite film》, the research content is summarized as follows. A new star-shaped structure conjugated microporous polymers, poly (2,8,14-tri[4-diphenyl-benzene]-hexaazatrinaphthylene) (PTPA-HATN), was designed and in-situ electrochem. polymerized on the surfaces of FTO electrodes with a directional alignment TiO₂ nanorod array to obtain TiO₂/PTPA-HATN core-shell nanocomposite films. Compared with the PTPA-HATN film, the TiO₂/PTPA-HATN composite film exhibits higher optical contrast and faster response time, with contrast of 57% at 783 nm, coloring time of 3.62 s and discoloring time of 2.55 s (43%, 4.63 s and 4.77 s for PTPA-HATN film, resp.). After 400 cycles, the contrast of nanocomposite film decreased by 28%, while the PTPA-HATN film basically lost its electrochromic properties. A simple three-layer EC prototype device based on TiO₂/PTPA-HATN nanocomposite film constructed with hydrogel electrolyte clearly shows color changes at different voltages. On the one hand, the formation of core-shell porous nanostructure of TiO₂/PTPA-HATN composite film provides a larger ion doping/de-doping interface, shortening the average diffusion length of ions. On the other hand, the large indented polymer-nanorods contact interface makes it difficult for the polymer to detach from the electrode, thus significantly improving the cyclic stability of the composite film.

Recommanded Product: 4-Bromobenzene-1,2-diamine, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., 1575-37-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary