A salt of a carboxylic acid, which is a n - substituted succinimide thio radical having the following formula (i) contains: wherein r is an organic c1- to c20-Radical is selected from alkyl radicals, cycloalkyl radical, aryl radicals and alkaryl radicals; x is an organic c1- to c20-...
Preferably aromatic acid from which the salt is formed has a pKa between 20 and 4.0 and is optionally salicylic, nitrobenzoic or chlorobenzoic acid. The salts of the invention may be made by the reaction of the dialkyl tin oxide with the aromatic carboxylic acid The salts may be used as ...
CARBOXYLIC ACID DERIVATIVE OR SALT THEREOFCARBOXYLIC ACID DERIVATIVE OR SALT THEREOFIt is intended to provide a compound which has an anticoagulant effect based on the inhibition of the activated blood coagulation factor VII and, therefore, is useful as a blood coagulation inhibitor or a preventive/...
摘要: Dryer-added fabric conditioning articles and methods utilizing, as a fabric conditioning agent, a carboxylic acid salt of a tertiary amine wherein the amine moiety contains at least one alkyl chain of from 12 to 20 carbon atoms.
NEW MATERIAL:A carboxylic acid derivative shown by the formulaI(n is 1-3; R<1> and R<2> are lower alkyl) and its salt. EXAMPLE:2-Dimethylaminoethanethiol farnesylacetic acid ester. USE:An antitumor agent. PROCESS:A compound shown by the formula II(X is a group capable of reacting with...
The folded configuration of bilirubin might facilitate a basic shift in pK, but hydrogen bonding of a carbonyl oxygen (doubly bonded in the case of bilirubin) normally decreases the pK of a carboxylic acid (23). Finally, the model must be recon- ciled with published potentiometric titrations ...
SOLVED: To produce an acid catalyst hardly causing a deterioration of activity and having a long service life by using an acid salt of a heteropoly-acid having specified values of specific surface area, fine pore volume and pore diameter, respectively and exhibiting a specified acid content value...
查询关键词:“SIGMA-A9518,69-52-3,氨苄西林钠盐,Ampicillin sodium salt,Sigma-Aldrich,上海现货”。 氨苄西林钠参考文献: [1]. Chopra SL, et al. Effect of Ampicillin on E. Coli of Swine Origin. Can J Comp Med Vet Sci. 1963 Sep;27(9):223-7. ...
英文名称:1-Naphthyl phsophoric acid sodium salt 纯度:98 % 别名:1-萘磷酸钠盐/α-萘磷酸钠/1-萘酚磷酸单钠盐/1-磷酸萘基酯单钠盐单水合物/1-Naphthyl phsophoric acid sodium salt 产地:美国SIGMA 品牌:SIGMA和国药 包装规格:100mg 货号:1-萘磷酸钠盐/α-萘磷酸钠/1-萘酚磷酸单钠盐/1-磷酸萘基酯单钠...
Thus, for example, 7-amino-3-vinyl-3-cephem-4-carboxylic acid is reacted with 2-mercapto-1,3-benzothiazolyl-(Z)-2-(2-aminothiazol-4-yl)-2-(methoxycarbonyl)-methoxyimino acetate in tetrahydrofuran and water at 4° C. in the presence of triethylamine. The reaction mass is extracted ...