烟碱酸 Save Sign in to save words Traditional (Taiwan): 菸鹼酸 yānjiǎnsuān ㄧㄢ ㄐㄧㄢˇ ㄙㄨㄢ niacin (vitamin B3) nicotinic acid Pyridine-3-carboxylic acid C6H5NO2 Character by character 烟(yān)cigarette or pipe tobacco 碱(jiǎn)base 酸(suān)sour A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0