CAS NO:150399-23-8 Pemetrexed Disodium Pemetrexed Disodium CAS 150399-23-8 Molecular Structure Molecular Formula: C20H19N5Na2O6 Molecular Weight: 471.37 CAS Registry Number: 150399-23-8 Character: white or white crystalline powder; odorless,tasteless, easily absorb water; Solubility: freely soluble In Water,practically insoluble In chloroform, slightly soluable in Methanol; Specific Rotation:+10