1,2-epoxy-3{4-(2 methoxyethyl)phenoxy}propaneMetoprolol IMP 2-[[4-(2-Methoxyethyl)phenoxy]methyl-oxirane

C-Desmethyl MetoprololMetoprolol IMP ((+/-)1-(ethylamino)-3-[4-(2-methoxyethyl)phenoxy]-propan-2-ol)

rac 1-Chloro-3-[4-(2-methoxyethyl)phenoxy]-2-propanolMetoprolol IMP ((+/-)1-Chloro-2-hydroxy-3-[4-(2-methoxyethyl)phenoxy]-propane)

MethylprednisoloneMethylprednisolone API 11β,17α,21-Trihydroxy-6α-methyl-1,4-pregnadiene-3,20-dione, 6α-Methyl-11β,17α,21-trihydroxy-1,4-pregnadiene-3,20-dione

Metoclopramide N-OxideMetoclopramide IMP N'-(4-Amino-5-chloro-2-methoxybenzoyl)-N,N-diethylethane-1,2-diamine N-Oxide (Metoclopramide N-Oxide)

Metoclopramide Impurity HMetoclopramide IMP 4-(Acetylamino)-2-hydroxybenzoic Acid

MethsuximideMethsuximide API 1,3-Dimethyl-3-phenyl-2,5-pyrrolidinedione

3-(3,4-Dihydroxyphenyl)-2-methyl-L-alanine SesquihydrateMethyldopa API L-(−)-α-Methyldopa

Methylparaben Secondary StandardMethylparaben API p-Hydroxybenzoic Acid methyl ester

N,N-DimethylmelamineMetformin Hydrochloride IMP N,N-Dimethyl-1,3,5-triazine-2,4,6-triamine