caprylic acid───[有化]辛酸 双语使用场景 Lactic acid: Carboxylic acid found in certain plant juices, in blood and muscle, and in soil.───乳酸: 在某些植物的汁液 、 血液和肌肉里以及土壤里发现的一种羧酸. esterification mechanism of unsaturatedcarboxylic acidwas analyzed.───分析了不饱和羧...
1. A resin composition comprising (A) 100 parts by weight of a polycarbonate resin (component A), (B) 0.005 to 1 part by weight of an ester component B) of pentaerythritol and an aliphatic carboxylic acid, (C) 0.003 to 0.2 ... TANABE Seiichi,田辺 誠一 - EP 被引量: 4发表: 0年...
The pyrrolidinecarboxylic functionalized ionic liquid, 1-butyl-3-methylimidazolium-(S)-2-pyrrolidinecarboxylic acid salt ([bmim][Pro]), was prepared using an improved procedure. α,β-Unsaturated carbonyl compounds were selectively synthesized and high yields (88%–97%) were obtained at room temperat...
英文名称:9-Anthracenecarboxylic acid723-62-6 CAS No.:723-62-6 中文名:9-蒽甲酸 别名: 分子式:C15H10O2 性状:Powder 纯度:98.0% 化学药品标准物质的分类: 9-Anthracenecarboxylic acid723-62-61.按来源: (1)国际化学标准物质(WHO) (2)美国药典标准物质(USPC,USP) ...
PREPARATION:For example, the reaction between thiazolo[5,4-b]pyrimidine- 2(1H)-one derivative of formula II and a halocarboxylic acid derivative of formula III (Z is F, Cl, Br, I) is carried out in the presence of an acid acceptor such as sodium carbonate to give the compound of ...
The best results are obtained with the above-named oxidants in a mixed solvent of methanol and trimethyl orthoformate in the presence of a strong acid; these conditions presumably ensure rapid acetalization of the carbonyl to prevent α-oxidation. This side reaction is more serious when...
产品规格:20 mg 目录价(元):300 大包装询价 产品概述: 产品参数 CAS 号:50995-74-9 分子式:C14H15NO4 分子量:261.3 分子结构图: 储存条件 -20℃避光保存,有效期见外包装。 产品介绍 7-(Diethylamino)coumarin-3-carboxylic acid 是一种具有 氨基反应活性的蓝色荧光探针。与 AMCA 偶联物相比,7- Diethylamino...
Thus, the sodium salt of isobutyrodithioic acid 14, after activation with boron trichloride, gives a smooth reaction with ammonia, methylamine, dimethylamine, or pyrrolidine to give the corresponding thioamides (equation 4).21 The approach may be extended to the synthesis of α-phosphono...
aSodium carbonate decahydrate (Na2CO3•10H2O) was provided by Riedel-de Haën and Folin–Trolox (6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid, 97%) was from Aldrich. Acetone gradient grade for liquid chromatography and methanol gradient grade for liquid chromatography were supplied by...
the reaction products of triethanolamine with ethylene oxide; and the reaction products of di-isobutylamine with styrene oxide and ethylene oxide. Other suitable tertiary amines specified are N,N-dimethyl -ndodecylamine, N,N-dimethyl -n-stearylamine, N,N-dimethylaminocaproic acid stearylamide, N,N...