Leucovorin is the active metabolite of folic acid. Leucovorin is used principally as its calcium salt as an antidote to folic acid antagonists.

58-05-9

C20H23N7O7

473.44

Leucovorin;HSDB 6544;Folinic acid

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years