对胺苯甲酸p-aminobenzoic acid (PABA)
乙酸ethanoic acid
一水柠檬酸CITRIC ACID Monohydrate BP 93
【医】 对羟苯丙酸parahydroxyphenyl-propionic acid
N-乙酰胞壁酸N-acetyl muramic acid (NAM)
尼龙610，聚癸二酸已二胺及纤维PA610；PA from Hexamethylene diamine and Sebacic acid(DIN,ISO)
酸碱滴定acid base titration
酸；酸的acid