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Pemetrexed
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Impurities
Name
Image
Pemetrexed Standard
CAS Number
137281-23-3
Alternate CAS Number
357166-29-1(DiNa Heptahydrate salt); 150399-23-8(Disodium salt)
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Pemetrexed Impurity-A
CAS Number
869791-42-4
Pemetrexed
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Pemetrexed Impurity-D
CAS Number
144051-68-3
Alternate CAS Number
1265908-59-5(TriNa Salt)
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Pemetrexed Impurity-E
CAS Number
182009-04-7
Alternate CAS Number
937370-10-0(DiNa Salt)
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Pemetrexed for system suitability CRS
CAS Number
Pemetrexed STD-137281-23-3; 357166-29-1(DiNa Heptahydrate salt); 150399-23-8(Disodium salt): IMP-A-869791-42-4: IMP-D-144051-68-3; 1265908-59-5(TriNa Salt): IMP-E-182009-04-7; 937370-10-0(DiNa Salt)
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