2-Methyl-4-amino-1-hydroxynaphthalenehydrochloride VitaminK5HCl 4-AMino-2-Methyl-1-naphthalenol Hydrochloride 4-Amino-2-methylnaphthol hydrochloride 4-AMINO-2-METHYL-1-NAPHTHOL HYDROCHLORIDE 2-METHYL-4-AMINO-1-NAPHTHOL HCL 2-METHYL-4-AMINO-1-NAPHTHOL HYDROCHLORIDE VITAMIN K5