methyl 5-amino-4-oxopentanoate hydrochloride; 5-Amino-4-oxopentanoic Acid Methyl Ester Hydrochloride (1:1); Methyl 5-Amino-4-oxopentanoate Hydrochloride; Methyl 5-Aminolevulinate Hydrochloride; Methyl ALA Ester Hydrochloride; Methyl Aminolevulinate Hydrochloride; Metvix; P 1202; ?-Aminolevulinic Acid Methyl Ester Hydrochloride