(3R,4S)-Tofacitinib is an less active enantiomer of Tofacitinib. Tofacitinib is a JAK3 inhibitor(IC50 : 1 nM).

1092578-46-5

C16H20N6O

312.37

(3R,4S)-Tofacitinib

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