Pemetrexed Oxidative Dimers (mixture of isomers B&C)

API CATEGORY Permetrexed Impurity
APPEARANCE Pale green solid
CAT NUMBER DCTI-C-2267
CAS NUMBER 1644286-34-9 (free acid)
IUPAC NAME tetra(l5-azanyl) 2,2'-((4,4'-((2,2'-diamino-4,4',6-trioxo-1,4,4',6,7,7'-hexahydro-3'H,5H-[5,6'-bipyrrolo[2,3-d]pyrimidine]-5,5'-diyl)bis(ethane-2,1-diyl))bis(benzoyl))bis(azanediyl))(2S,2'S)-diglutarate
MOLECULAR FORMULA C40H40N10O13 (free acid); C40H52N14O13 (ammonium salt)
MOLECULAR WEIGHT 868.82 (free acid); 936.94 (ammonium salt)
SOLUBILITY Water
STORAGE CONDITION 2-8°C
SYNONYMS oxidative dimer, isomers 1 and 2; pemetrexed dimer (diasteromeric mixture); pemetrexed impurity B&C; Pemetrexed EP impurity B&C

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