1) 5-(substitutedphenyl)-2-furoic acid
5-取代苯基糠酸
2) 5-(substituted phenyl)furan-2-carboxylic acid
5-取代苯基-2-呋喃甲酸
3) phenyl replacing acid
苯基取代酸
1.
This paper employs the theories of inductive effect, conjugate effect, stereo position effect and negative-ion structural stability to analyze the respective strong or weak acidity of phenyl replacing acid and benzoic acid.
应用诱导效应、共轭效应、立体位阻效应和负离子结构稳定化等理论说明了苯基取代酸、取代苯甲酸的酸性强弱 ,尤其对邻位取代苯甲酸的酸性较间和对位异构体的酸性强的原因作了浅
4) 5-(4-Bromophenyl)furfural
5-对溴苯基糠醛
5) HMFA(5-hydroxymethyl-2-furoic acid)
5-羟甲基糠酸(HMFA)
1.
Objective The HPLC method was successfully applied to determine content of HMF(5-hydroxymethyl-2-furfural) and HMFA(5-hydroxymethyl-2-furoic acid) of prepared rehmannia of different production places in market,the proposed processing time of prepared rehmannia of different production places in market was preliminarily evaluated.
目的通过使用高效液相色谱法对市场上熟地黄中的有效成分5-羟甲基糠醛(HMF)和5-羟甲基糠酸(HMFA)含量进行定量研究,以便能分析各企业所生产的熟地黄饮片的优劣。
6) acetic ester of 2 (2' hydroxyphenyl) 5(6) substituted benzimidazole
邻-[(5(6)-取代苯并咪唑)-2-基]-苯氧乙酸乙酯
补充资料:2-糠酸
分子式:C5H4O3
分子量:112.08
CAS号:88-14-2
性质:熔点129-133°C。沸点230-232°C。闪点137°C。水溶性36 g/L (20°C)。
分子量:112.08
CAS号:88-14-2
性质:熔点129-133°C。沸点230-232°C。闪点137°C。水溶性36 g/L (20°C)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条