Tag: M.W=150-200

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 5445-17-0, formula is C4H7BrO2, The most pervasive is the naturally produced bromomethane. HPLC of Formula: 5445-17-0

Wang, Yi;Matyjaszewski, Krzysztof research published 《 Catalytic Halogen Exchange in Miniemulsion ARGET ATRP: A Pathway to Well-Controlled Block Copolymers》, the research content is summarized as follows. Halogen exchange in atom transfer radical polymerization (ATRP) is an efficient way to chain-extend from a less active macroinitiator (MI) to a more active monomer. This has been previously achieved by using CuCl/L in the equimolar amount to P_n-Br MI in the chain extension step. However, this approach cannot be effectively applied in systems based on regeneration of activators (ARGET ATRP), since they operate with ppm amounts of catalysts. Herein, a catalytic halogen exchange procedure is reported using a catalytic amount of Cu in miniemulsion ARGET ATRP to chain-extend from a less active poly(Bu acrylate) (PBA) MI to a more active Me methacrylate (MMA) monomer. Influence of different reagents on the initiation efficiency and dispersity is studied. Addition of 0.1 M NaCl or tetraethylammonium chloride to ATRP of MMA initiated by Me 2-bromopropionate leads to high initiation efficiency and polymers with low dispersity. The optimized conditions are then employed in chain extension of PBA MI with MMA to prepare diblock and triblock copolymers.

5445-17-0, Methyl 2-bromopropionate, also known as Methyl 2-bromopropionate, is a useful research compound. Its molecular formula is C4H7BrO2 and its molecular weight is 167 g/mol. The purity is usually 95%.
Methyl 2-bromopropionate is used in the synthesis of poly(ADP-Ribose)polymerase inhibitors derived from benzoxazin-3-one. Also used in the synthesis of 5-HT2C antagonists affecting serotonin levels.
Methyl 2-bromopropanoate is a chemical compound that can be synthesized in an asymmetric manner. The reaction of methyl 2-bromopropanoate with hydrochloric acid gives the corresponding carboxylic acid, methyl propanoate, and hydrogen bromide in a 1:1 ratio. It has been shown that methyl 2-bromopropanoate is a potential catalyst for the reduction of chloride to chloride ion via the borohydride reduction method. Methyl 2-bromopropanoate has also been used as a model system for studying halides and copper complexes. Magnetic resonance spectroscopy studies have revealed that this chemical compound has a high redox potential and kinetic properties., HPLC of Formula: 5445-17-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 4897-84-1, formula is C5H9BrO2, Name is Methyl 4-bromobutanoate. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Safety of Methyl 4-bromobutanoate.

Wang, Yingge;Sun, Moran;Wang, Yuyang;Qin, Jinling;Zhang, Yixin;Pang, Yingyue;Yao, Yongfang;Yang, Hua;Duan, Yongtao research published 《 Discovery of novel tubulin/HDAC dual-targeting inhibitors with strong antitumor and antiangiogenic potency》, the research content is summarized as follows. A novel series of cis-diphenylethene and benzophenone derivatives as tubulin/HDAC dual-targeting inhibitors were designed and synthesized. Among them, compound I exhibited the most potent antiproliferative activities against six different human cancer cell lines. I not only inhibited tubulin polymerization, disrupted cellular microtubule networks but also selectively inhibited class IIa HDACs, especially HDAC7 activity. Further, mol. docking demonstrated that I could occupy the binding pockets of tubulin and HDAC7. Cellular mechanism studies revealed that I could induce G2/M phase arrest by down-regulated expression of p-cdc2 and cell apoptosis by regulating mitochondrial membrane potential, reactive oxygen species (ROS) levels and apoptosis-related proteins (PARP, Caspase families) in a dose-dependent manner. Importantly, I significantly inhibited HUVEC tube formation, proliferation, migration, and invasion. The inhibitory effect against angiogenesis in vivo was confirmed by zebrafish xenograft. Furthermore, I could effectively suppress the proliferation and metastasis of MGC-803 cells in vitro and in a zebrafish xenograft. All the above results indicate that I can act as a promising antitumor and antiangiogenic agent via targeting tubulin and class IIa HDACs.

Safety of Methyl 4-bromobutanoate, 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., 4897-84-1.

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. 6911-87-1, formula is C7H8BrN, Name is 4-Bromo-N-methylaniline. Organic compounds having carbon bonded to bromine are called organic bromides. Recommanded Product: 4-Bromo-N-methylaniline.

Wang, Guan-Jun;Zhang, Shu-Yu;Sun, Zhen-Liang;Li, Peng;Ding, Tong-Mei research published 《 Highly Site- and Enantioselective N-H Functionalization of N-Monosubstituted Aniline Derivatives Affording Pyrazolones Bearing a Quaternary Stereocenter》, the research content is summarized as follows. Chiral phosphoric acid catalyzed the regio- and enantioselective N-H functionalization of N-alkylaniline with pyrazolones derived ketimines as electrophiles, providing a variety of chiral pyrazolones containing a tetrasubstituted stereocenter bearing a new N,N’-acetal motif in excellent yields and high enantioselectivities was reported. This strategy was featured by low catalyst loading, mild conditions, and high efficiency and selectivity.

Recommanded Product: 4-Bromo-N-methylaniline, 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., 6911-87-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 70-23-5, formula is C5H7BrO3, Name is Ethyl 3-bromo-2-oxopropanoate. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Name: Ethyl 3-bromo-2-oxopropanoate.

Wang, Haibin;Xu, Xin;Yin, Jichen;Zhang, Zhifeng;Xue, Lei research published 《 A Highly Selective “Turn-On” Fluorescent Sensor for Aluminum Ion Detection in Aqueous Solution Based on Imidazo[2,1-b]thiazole Schiff Base》, the research content is summarized as follows. Low sensitivity of fluorescent sensors with “turn-off” response for identifying Al³⁺ has limited their wide application in the field of ion sensing. Herein, this paper reports a novel fluorescence sensor (L) endowing with “turn-on” fluorescence response based on imidazo[2,1-b]thiazole for recognizing Al3+ in aqueous solutions Results show that the L exhibits high selectivity and sensitivity with “turn-on” fluorescence response towards Al³⁺, but also has strong anti-interference to other common ions. In addition, the excellent color change can be distinguished by naked eyes under UV light and the test papers show great potential for detecting Al³⁺ in tap water. The supposed sensing mechanism of L to Al³⁺ could be attributed to the inhibition of photo-induced electron transfer (PET) and chelation-enhanced fluorescence (CHEF). Such a novel design pathway is expected to offer helpful guidance for fabricating various sensors with “turn-on”; fluorescence response.

70-23-5, Ethyl bromopyruvate molecular formula is C5H7BrO3 and its molecular weight is 195.01 g/mol. The purity is usually 95%.

Ethyl bromopyruvate is used in a synthesis of thioxothiazolidines from carbon disulfide and primary amines.

Ethyl bromopyruvate is a chemical inhibitor that inhibits the enzyme pyruvate dehydrogenase, which is responsible for the conversion of pyruvic acid to acetyl-CoA. This inhibition leads to a decrease in ATP levels and can cause metabolic disorders. Ethyl bromopyruvate is used as an anthelmintic drug and in asymmetric synthesis. It is also used in the synthesis of thiostrepton, an antibiotic that has been shown to have antimicrobial activity against Gram-positive bacteria, including Staphylococcus aureus and Streptococcus pneumoniae., Name: Ethyl 3-bromo-2-oxopropanoate

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 4224-70-8, formula is C6H11BrO2, Name is 6-Bromohexanoic acid. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Name: 6-Bromohexanoic acid.

Wang, Hao;Jung, Hoimin;Song, Fangfang;Zhu, Shiyang;Bai, Ziqian;Chen, Danye;He, Gang;Chang, Sukbok;Chen, Gong research published 《 Nitrene-mediated intermolecular N-N coupling for efficient synthesis of hydrazides》, the research content is summarized as follows. N-N linkages are found in many natural compounds and endow fascinating structural and functional properties. In comparison to the myriad methods for the construction of C-N bonds, chem. for N-N coupling, especially in an intermol. fashion, remains underdeveloped. Here, we report a nitrene-mediated intermol. N-N coupling of dioxazolones and arylamines under iridium or iron catalysis. These reactions offer a simple and efficient method for the synthesis of various hydrazides from readily available carboxylic acid and amine precursors. Although the Ir-catalyzed conditions usually give higher N-N coupling yield than the Fe-catalyzed conditions, the reactions of sterically more demanding dioxazolones derived from α-substituted carboxylic acids work much better under the Fe-catalyzed conditions. Mechanistic studies revealed that the nitrogen atom of Ir acyl nitrene intermediates has strong electrophilicity and can undergo nucleophilic attack with arylamines with the assistance of Cl···HN hydrogen bonding to form the N-N bond with high efficiency and chemoselectivity.

Name: 6-Bromohexanoic acid, 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., 4224-70-8.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 6911-87-1, formula is C7H8BrN, Name is 4-Bromo-N-methylaniline. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Related Products of 6911-87-1.

Wang, Hui;Lu, Wangmingzhu;Sun, Zhonghua;Wang, Anwei;Zhou, Weiyou;He, Mingyang;Chen, Qun research published 《 α-Cyanation of Aromatic Tertiary Amines using Malononitrile as a Low-Toxic Cyanide Source under the Catalysis of NiGa Layered Double Oxide》, the research content is summarized as follows. NiGa layered double oxide (Ni₃Ga-LDO) has been found to be an efficient heterogeneous catalyst for the α-cyanation of aromatic tertiary amines using malononitrile as a low-toxic cyanide source to obtain α-aminonitriles RNMeCH₂CN [R = Ph, 2-MeC₆H₄, 3-MeC₆H₄, 4-MeC₆H₄, 4-MeOC₆H₄; R¹ = Me, Et] and aryltetrahydroisoquinolinecarbonitriles I [R² = Ph, 4-FC₆H₄, 4-BrC₆H₄, etc.]. Various aniline and aryltetrahydroisoquinoline derivatives were found to be tolerated by the catalytic system, and good to excellent yields for the corresponding products could be obtained. The results indicated that CN^– might be produced via a oxidation-decomposition path, and the reaction probably proceeded via a cross-dehydrogenative coupling process. In addition, good stability and recyclability were observed for Ni₃Ga-LDO catalyst in the reaction.

Related Products of 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., 6911-87-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 5445-17-0, formula is C4H7BrO2, Name is Methyl 2-bromopropanoate. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Formula: C4H7BrO2.

Wang, Jirong;Xie, Xiaolin;Xue, Zhigang;Fliedel, Christophe;Poli, Rinaldo research published 《 Ligand- and solvent-free ATRP of MMA with FeBr₃ and inorganic salts》, the research content is summarized as follows. Bulk Me methacrylate (MMA) polymerization can be achieved with excellent control by ATRP in the presence of FeBr₃/EBrPA/Mt⁺X^–, where EBrPA = Et 2-bromophenylacetate and Mt⁺X^– can be one of the several inorganic compounds (carbonate, bicarbonate, phosphate, hydroxide, chloride, bromide) of an alkali metal cation. The most effective cations are sodium and potassium. Notably, this procedure does not require the presence of any neutral ligand or coordinating solvent. The polymer chain end anal. demonstrates the initiator action of EBrPA. A mechanistic investigation shows that the ATRP activator, FeBr₂, is generated in situ after EBrPA activation by the inorganic salt, deactivation of the resulting EPA radical by FeBr₃, and quenching of the concurrently generated Mt⁺(XBr^.)^– radical. This quenching occurs by the addition of this radical to MMA, but it is also possible by Fe-catalyzed disproportionation when MtX = KOH. The EPA radical may also be deactivated by dimerization and the removal of these reducing equivalent is detrimental to the FeBr₂ accumulation, but the removal of the oxidizing Mt+(XBr ̇)- equivalent prevails. The mechanistic investigation also confirms that the product of Br addition to MMA, Me 1,2-dibromoisobutyrate, is not an efficient initiator for the MMA ATRP catalyzed by FeBr₂ under thermal conditions.

5445-17-0, Methyl 2-bromopropionate, also known as Methyl 2-bromopropionate, is a useful research compound. Its molecular formula is C4H7BrO2 and its molecular weight is 167 g/mol. The purity is usually 95%.
Methyl 2-bromopropionate is used in the synthesis of poly(ADP-Ribose)polymerase inhibitors derived from benzoxazin-3-one. Also used in the synthesis of 5-HT2C antagonists affecting serotonin levels.
Methyl 2-bromopropanoate is a chemical compound that can be synthesized in an asymmetric manner. The reaction of methyl 2-bromopropanoate with hydrochloric acid gives the corresponding carboxylic acid, methyl propanoate, and hydrogen bromide in a 1:1 ratio. It has been shown that methyl 2-bromopropanoate is a potential catalyst for the reduction of chloride to chloride ion via the borohydride reduction method. Methyl 2-bromopropanoate has also been used as a model system for studying halides and copper complexes. Magnetic resonance spectroscopy studies have revealed that this chemical compound has a high redox potential and kinetic properties., Formula: C4H7BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine. 6911-87-1, formula is C7H8BrN, Name is 4-Bromo-N-methylaniline, Computed Properties of 6911-87-1

Wang, Jixiao;Li, Shihong;Wang, Yunpeng;Feng, Xiujuan;Yamamoto, Yoshinori;Bao, Ming research published 《 Unsupported Nanoporous Palladium Catalyst for N-Formylation of Amines Using CO₂ as a Sustainable C1 Source》, the research content is summarized as follows. An efficient heterogeneous catalytic system for the synthesis of aryl formamides R¹N(C(O)H)R² [R¹ = Ph, 4-MeC₆H₄, 2-MeOC₆H₄, etc.; R² = H, Me, Bn, etc.; R¹ = R² = Ph, Bn, Cy, etc.] via N-formylation of amines using CO₂ as a sustainable C1 source was developed using unsupported nanoporous palladium (PdNPore). The PdNPore-catalyzed N-formylation of amines and CO₂ with hydrosilane proceeded smoothly under mild reaction conditions to yield formamides in satisfactory to excellent yields. No palladium leached from PdNPore during the hydrogenation reaction. Moreover, the catalyst was easily recovered and reused without any loss of catalytic activity. This study was the first to demonstrate that PdNPore catalyzed CO₂ conversion to form C-N bond, which enriches the reaction types of CO₂ conversion catalyzed by PdNPore catalyst.

Computed Properties of 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., 6911-87-1.

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. Application In Synthesis of 6911-87-1

Wang, Liang;Xie, Lin;Fang, Zeguo;Zhang, Qian;Li, Dong research published 《 Tandem trifluoromethylthiolation and cyclization of N-aryl-3-butenamides with AgSCF₃: divergent access to CF₃S-substituted 3,4-dihydroquinolin-2-ones and azaspiro[4,5]dienones》, the research content is summarized as follows. An AgSCF₃-mediated tandem trifluoromethylthiolation and cyclization of N-aryl-3-butenamides I (R¹ = H, 2-F, 4-F₃C, 3-Cl, 3,4-benzo, etc.; R² = Me, PhCH₂) has been developed. It showed divergent reactivities and enabled the selective syntheses of CF₃S-substituted 3,4-dihydroquinolin-2-ones II and azaspiro[4,5]dienones III. The selectivity was achieved through different cyclization pathways of a CF₃S-substituted alkyl radical intermediate. This method provides a useful tool for the synthesis of CF₃S-substituted N-heterocyclic compounds

Application In Synthesis of 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., 6911-87-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 5445-17-0, formula is C4H7BrO2, Name is Methyl 2-bromopropanoate. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Application In Synthesis of 5445-17-0.

Wang, Lingxiao;Qiao, Jie;Wei, Jiancong;Liang, Zhiwu;Xu, Xinhua;Li, Ningbo research published 《 Air-stable binuclear Titanium(IV) salophen perfluorobutanesulfonate with zinc power catalytic system and its application to C-S and C-Se bond formation》, the research content is summarized as follows. An air-stable μ-oxo-bridged binuclear Lewis acid of titanium(IV) salophen perfluorobutanesulfonate [{Ti(salophen)H₂O}₂O][OSO₂C₄F₉]₂ was successfully synthesized by the reaction of Ti^IV(salophen)Cl₂ with AgOSO₂C₄F₉ and characterized by techniques such as IR, NMR and HRMS. This complex was stable open to air over a year and exhibited good thermal stability and high solubility in polar organic solvents. The complex also showed relatively strong acidity with a strength of 0.8 < Ho < 3.3 and showed high catalytic efficiency towards various C-S and C-Se bond formations in the presence of zinc power. This catalytic system afforded a mild and efficient approach to synthesis of thio- and selenoesters, α-arylthio- and seleno-carbonyl compounds and thio- and selenoethers.

5445-17-0, Methyl 2-bromopropionate, also known as Methyl 2-bromopropionate, is a useful research compound. Its molecular formula is C4H7BrO2 and its molecular weight is 167 g/mol. The purity is usually 95%.
Methyl 2-bromopropionate is used in the synthesis of poly(ADP-Ribose)polymerase inhibitors derived from benzoxazin-3-one. Also used in the synthesis of 5-HT2C antagonists affecting serotonin levels.
Methyl 2-bromopropanoate is a chemical compound that can be synthesized in an asymmetric manner. The reaction of methyl 2-bromopropanoate with hydrochloric acid gives the corresponding carboxylic acid, methyl propanoate, and hydrogen bromide in a 1:1 ratio. It has been shown that methyl 2-bromopropanoate is a potential catalyst for the reduction of chloride to chloride ion via the borohydride reduction method. Methyl 2-bromopropanoate has also been used as a model system for studying halides and copper complexes. Magnetic resonance spectroscopy studies have revealed that this chemical compound has a high redox potential and kinetic properties., Application In Synthesis of 5445-17-0

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary