Pemetrexed Disodium
C20H19N5Na2O6·7H2O
597.49
l-Glutamic acid, N-[4-[2-(2-amino-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-, disodium salt, heptahydrate;
Disodium N-{p-[2-(2-amino-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-l-glutamate heptahydrate
[357166-29-1] C20H19N5Na2O6 471.38
Anhydrous
[150399-23-8] C20H21N5O6 427.42
Pemetrexed (free acid)
[137281-23-3] C20H19N5Na2O6·2.5 H2O 516.42
Hemipentahydrate [357166-30-4]
l-Glutamic acid, N-[4-[2-(2-amino-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]-, disodium salt, heptahydrate;
Disodium N-{p-[2-(2-amino-4,7-dihydro-4-oxo-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-l-glutamate heptahydrate
[357166-29-1] C20H19N5Na2O6 471.38
Anhydrous
[150399-23-8] C20H21N5O6 427.42
Pemetrexed (free acid)
[137281-23-3] C20H19N5Na2O6·2.5 H2O 516.42
Hemipentahydrate [357166-30-4]
DEFINITION
Pemetrexed Disodium contains NLT 97.5% and NMT 102.0% of pemetrexed disodium (C20H19N5Na2O6), calculated on the anhydrous and solvent-free basis.