Nicotinic anhydride.
D000812:Anhydrides; D006801:Humans; D009525:Niacin; D009539:Nicotinic Acids; D012502:Sapogenins
D000812:Anhydrides; D009539:Nicotinic Acids; D012502:Sapogenins; D009525:Niacin
NICOTINIC ACID; SAPOGENINS