R-Methotrexate (5 mg) (Sodium (R)-2-(4-{[(2,4-Diaminopteridin-6-yl)methyl](methyl)amino}benzamido)pentanedioate),
This R-Methotrexate is guaranteed a (5 with the use of mg) and directly supplied to your lab by Gentaur's warehouse.
Internal Reference:
RW2-1413988