Standards; Pharmaceutical/API Drug Impurities/Metabolites;
应用:
(S)-N-[4-[[((R)-2-Amino-6,7,8,9-tetrahydro-8-methyl-4,9-dioxo-4H-pyrazino[1,2-a]-1,3,5-triazin-7-yl)methyl]amino]benzoyl]-L-glutamic Acid (A629755) is an impurity of Levomefolate (L375720), the natural form of folic acid.