Category: bromides-buliding-blocks

Zheng, Hai-jin published the artcileSynthesis and property of a new type of chromogenic reagent of thiazolylazo, Name: Sodium 3-bromopropane-1-sulfonate, the publication is Huaxue Yanjiu (2004), 15(3), 42-44, database is CAplus.

The synthesis of 2-(4,5-dimethyl-2-thiazoleazo)-4-methyl-5-sulfopropylaminobenzoic acid is reported. Its chromogenic property with Cu²⁺, Ni²⁺, Co²⁺ was studied. It can form stable compounds with Cu²⁺, Ni²⁺, Co²⁺. The maximum absorptions of these compounds are at 628 nm, 590 run, 583 nm, and their molar absorptivities (ε) are 8.4 × 10⁴, 5.8 × 10⁴ and 4.8 × 10⁴, resp. Also this material can be used as a good spectrophotometric chromogenic agent for some metal ions.

Huaxue Yanjiu published new progress about 55788-44-8. 55788-44-8 belongs to bromides-buliding-blocks, auxiliary class Bromide,Salt,Aliphatic hydrocarbon chain,Aliphatic hydrocarbon chain, name is Sodium 3-bromopropane-1-sulfonate, and the molecular formula is C15H14O3, Name: Sodium 3-bromopropane-1-sulfonate.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Dougherty, G. published the artcileA comparison of the base-pair specificities of three phenanthridine drugs using solution spectroscopy, Safety of Dimidium bromide, the publication is International Journal of Biochemistry (1982), 14(6), 493-504, database is CAplus and MEDLINE.

Absorption spectra of ethidium  [1239-45-8], dimidium  [518-67-2], and prothidium bromides  [14222-46-9] bound to natural DNAs of differing G-C content were obtained using a novel mixing scheme and analyzed according to the excluded site binding model. Ethidium bromide showed a strong G-C specificity at low binding ratios, especially at low ionic concentration Dimidium bromide showed a less strong G-C specificity. For both drugs, the binding site size reflected a situation close to nearest-neighbor exclusion. Prothidium bromide showed no specificity in its binding. The binding modes were different than for the other 2 phenanthridines, suggesting that the primary mode is sideways intercalation.

International Journal of Biochemistry published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Safety of Dimidium bromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Dougherty, Geoffrey published the artcileThe unwinding of circular DNA by intercalating agents as determined by gel electrophoresis, SDS of cas: 518-67-2, the publication is Bioscience Reports (1983), 3(5), 453-60, database is CAplus and MEDLINE.

An accurate and precise method is described to determine the unwinding angle of the circular DNA helix of plasmid pBR322/RcβG by ethidium bromide and other intercalating agents of electrophoresis in 1.4% agarose gels containing chloroquine, followed by densitometry of the photog. negs. of the gels. Under the electrophoresis conditions used, native (form I) DNA and partially relaxed samples, running faster or slower than it, were resolved. Contaminating nicked (form II) DNA did not interfere, since it was clearly separated during electrophoresis.

Bioscience Reports published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, SDS of cas: 518-67-2.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Gajda, Tadeusz published the artcilePreparation of diethyl 1-bromoalkylphosphonates, HPLC of Formula: 66197-72-6, the publication is Phosphorus, Sulfur and Silicon and the Related Elements (1990), 53(1-4), 327-31, database is CAplus.

RCHBrP(O)(OEt)₂ (R = H, Me, Et, Pr, Ph) were prepared by treating RCH(OH)P(O)(OEt)₂ with Ph₃P and CBr₄ in refluxing C₆H₆, or with Ph₃PBr₂ and pyridine in MeCN at room temperature Yields of 22-67% were obtained.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, HPLC of Formula: 66197-72-6.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Gill, B. S. published the artcileSurra. XI. Chemotherapeutic susceptibility of Trypanosoma evansi, Synthetic Route of 518-67-2, the publication is Indian Journal of Animal Sciences (1973), 43(4), 226-9, database is CAplus.

The median effective and curative doses of 39 trypanocidal agents are reported for T. evansi infections in rats. These two parameters indicated the comparative chemotherapeutic susceptibility of the organism, which is the causative agent for surra disease in domestic animals. Arsenicals, antimonials, acriflavine, diamidines, sulfonated naphthylamine derivatives, aminoquinaldine derivatives, phenanthridines, nitrofurazone, and terephthalanilide compounds were tested.

Indian Journal of Animal Sciences published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Synthetic Route of 518-67-2.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Griffin, C. E. published the artcilePhosphoryl stretching frequency correlation for phosphonic acid derivatives, Quality Control of 66197-72-6, the publication is Chemistry & Industry (London, United Kingdom) (1960), 1058-9, database is CAplus.

A plot of Σ σ* (Taft substituent constants) vs. γ_PO (as films in CS₂ or CCl₄) for 19 phosphonates [RP(O)XY] (I) gave a linear relationship; a least squares treatment of the data gave γ_PO = 16.80 Σσ* + 1198. The following I were studied (X = Y = OEt) (R given): Me, Et, Pr, Bu, n-C₆H₁₃, CH₂:CH, CH₂:CHCH₂, PhCH₂, Ph, ClCH₂, Cl₂CH, CCl₃ (II), BrCH₂, HOCH₂, AcCH₂. Also I (R, X, and Y given): Me, OMe, OMe; Me, OEt, NMe₂; Me, NMe₂, NMe₂ (III); Ph, H, OEt. The average deviation between calculated and observed frequencies was ±4 cm.^-1; the only significant deviation occurred with II and III, and may have arisen through disturbance of the normal inductive effects of the substituents by field effects. Major deviations from the linear relationship also occurred with frequency values obtained in the presence of H-bonding solvents. The following σ* values were tentatively assigned: (CH₂)₂CO₂Et, 0.39; (CH₂)₃CO₂Et, 0.39; NEt₂, 0.68.

Chemistry & Industry (London, United Kingdom) published new progress about 66197-72-6. 66197-72-6 belongs to bromides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyl (bromomethyl)phosphonate, and the molecular formula is C5H12BrO3P, Quality Control of 66197-72-6.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Grzadka, E. published the artcileCompetitive adsorption in the system: carboxymethylcellulose/surfactant/electrolyte/Al₂O₃, Recommanded Product: Dimidium bromide, the publication is Cellulose (Dordrecht, Netherlands) (2011), 18(2), 291-308, database is CAplus.

The adsorption of CM-cellulose (CMC) in the presence or absence of the surfactants: anionic SDS, nonionic Triton X-100 and their mixture SDS/TX-100 from the electrolyte solutions (NaCl, CaCl₂) on the alumina surface (Al₂O₃) was studied. In each measured system the increase of CMC adsorption in the presence of surfactants was observed This increase was the smallest in the presence of SDS, a bit larger in the presence of Triton X-100 and the largest when the mixture of SDS/Triton X-100 was used. These results are a consequence of formation of complexes between the CMC and the surfactant particles. Moreover, the dependence between the amount of surfactants’ adsorption and the CMC initial concentration was measured. It comes out that the surfactants’ adsorption amount is not dependent on the CMC initial concentration and moreover, it is unchanged in the whole measured concentration range. The influence of kind of electrolyte, its ionic strength as well as pH of a solution on the amount of the CMC adsorption at alumina surface was also measured. The amount of CMC adsorption is larger in the presence of NaCl than in the presence of CaCl₂ as the background electrolyte. It is a result of the complexation reaction between Ca²⁺ ions and the functional groups of CMC belonging to the same macromol. As far as the electrolyte ionic strength is concerned the increase of CMC adsorption amount accompanying the increase of electrolyte ionic strength is observed The reason for that is the ability of electrolyte cations to screen every electrostatic repulsion in the adsorption system. Another observation is that the increase of pH caused the decrease of CMC adsorption. The explanation of this phenomenon is connected with the influence of pH on both dissociation degree of polyelectrolyte and kind and concentration of surface active groups of the adsorbent.

Cellulose (Dordrecht, Netherlands) published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Recommanded Product: Dimidium bromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Henderson, J. Frank published the artcileInhibition of purine metabolism in Ehrlich ascites carcinoma cells by phenanthridinium compounds related to ethidium bromide, Name: Dimidium bromide, the publication is Cancer Research (1963), 491-5, database is CAplus and MEDLINE.

The effect of 10 phenanthridinium derivatives on the incorporation of adenine and glycine into the nucleic acids and proteins of Ehrlich ascites carcinoma cells in vitro, has been studied. Only 1 compound markedly inhibited incorporation of glycine into nucleic acids and proteins, whereas all the drugs inhibited incorporation of adenine into nucleic acids.

Cancer Research published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Name: Dimidium bromide.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Kuivila, Henry G. published the artcileOrganotin hydrides and organic free radicals, SDS of cas: 594-81-0, the publication is Accounts of Chemical Research (1968), 1(10), 299-305, database is CAplus.

The preparation and properties of organotin hydrides, their reduction of alkyl and aryl halides, aldehydes, ketones, isocyanates, and isothiocyanates and their addition to C-C double or triple bonds, their use in the study of organic free radicals, i.e. octen-5-yl free radicals, cyclization of unsaturated acyclic radicals, the tritylmethyl radical, free-radical β-eliminations, vinyl free radicals and photoreduction, are reviewed with 39 references.

Accounts of Chemical Research published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C6H12Br2, SDS of cas: 594-81-0.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Larsson, Erik published the artcileSome S-containing β-substituted derivatives of isobutyric acid, Name: 3-Bromo-2-methylpropanoic acid, the publication is Chalmers Tekniska Hoegskolas Handlingar (1944), 3-17, database is CAplus.

The preparation is described of β-alkyl, β-aryl, and β-arylalkyl sulfide derivatives, RSCH₂CHMeCO₂H (I), and of the corresponding sulfone carboxylic acids, RSO₂CH₂CHMeCO₂H (II). The synthesis of BrCH₂CHMeCO₂H (III) was improved by interacting HBr with CH₂: CMeCO₂H (IV) in CHCl₃. HSCH₂CHMeCO₂H (V) was prepared from (1) IV via MeCOSCH₂CHMeCO₂H, (2) III and NaHS, or (3) fission of EtOCS₂CH₂CHMeCO₂H prepared from EtOCS₂K and III. The Me derivative of V was prepared in aqueous solution by reaction of the di-Na salt of V with Me₂SO₄ or KMeSO₄; the Et, Pr, PhCH₂, and PhCH₂CH₂ derivatives from their halides and the di-Na salt of V in aqueous alc. solution The Ph derivative was prepared in aqueous solution from PhSNa and the Na salt of III. All of the sulfide acids (I) prepared consumed 4 equivalents of Br per mol. on oxidation in HCl solution, indicating conversion to the sulfone carboxylic acids (II). The latter were prepared by Br or KMnO₄ oxidation. The following phys. properties are given for I (R given): b.p./mm., d₄²⁰, n_D²⁰, n_F²⁰-n_C²⁰, MR_D(found) and mol. volume at 20°: Me 129-30°/12, 1.1086, 1.4815, 0.0112, 34.48, 121.1; Et 140-1°/12, 1.0684, 1.4780, 0.0110, 39.27, 138.7; Pr 138-9°/6, 1.0405, 1.4761, 0.0107, 43.97, 155.9; and PhCH₂CH₂ 190-5°/6, 1.1207, 1.5450, 0.0159, 63.28, 200.1. The I where R is iso-Pr b₈ 135-7°, m. 31°; Ph m. 45°; PhCH₂ m. 43°. The m.ps. of the following II are: Me 134°, Et 82°, Pr 75-6°, iso-Pr 109°, Ph 113°, PhCH₂ 154°, and PhCH₂CH₂ 93°. The PhCH₂ derivative of V was oxidized by K₂S₂O₈ or H₂O₂ to the sulfoxide (m. 110-11°) but the 2 theoretically possible forms of PhCH₂SOCH₂CHMeCO₂H could not be isolated. Oxidation of V with Br gave the sulfone acid. Compounds like II apparently ionize thus in alk. solution: RSO₂CH₂CHMeCO₂^– + OH^– = RSO₂^– + CH₂:CMe-CO₂^– + H₂O.

Chalmers Tekniska Hoegskolas Handlingar published new progress about 56970-78-6. 56970-78-6 belongs to bromides-buliding-blocks, auxiliary class Bromide,Carboxylic acid,Aliphatic hydrocarbon chain,Inhibitor, name is 3-Bromo-2-methylpropanoic acid, and the molecular formula is C4H7BrO2, Name: 3-Bromo-2-methylpropanoic acid.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary