(4-(((2-氨基-4-氧代-3,4-二氢蝶呤-6-基)甲基)(亚硝基)氨基)苯甲酰基-2,3,5,6-d4)谷氨酸，>95% (HPLC)

(4-(((2-Amino-4-oxo-3,4-dihydropteridin-6-yl)methyl)(nitroso)amino)benzoyl-2,3,5,6-d4)glutamic Acid