本品為白色結晶或結晶性粉末,無臭或有微臭,味微酸;水溶液顯酸性反應。本品在沸水或沸乙醇中溶解,在水中略溶,在乙醇中微溶,在碳酸鈉溶液或氫氧化鈉溶液中均易溶。熔點234-238℃,屬于維生素類藥。
煙酸CAS號:59-67-6
煙酸分子式: C6H5NO2
煙酸英文名稱: Nicotinic acid
煙酸英文同義詞: BETA-PICOLINIC ACID; AKOS BBS-00003719; ACIDUM-NICOTINICUM; 3-PICOLINIC ACID; 3-CARBOXYPYRIDINE; RARECHEM AL BO 0217; TIMTEC-BB SBB004279123.11; 3-Carboxy Pyridine; Pyridine -3-Carloxylic acid; Niacin; pyridine-3-carboxylate; pyridine-3-carboxylic acid
煙酸EINECS號: 200-441-0
煙酸分子量: 123.1094
煙酸熔點: 234-238℃
煙酸沸點: 292.5°C at 760 mmHg
煙酸密度: 0.000836mmHg at 25°C
煙酸閃點: 130.7°C