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Tofacitinib (Tasocitinib) is a Janus kinase inhibitor that inhibits JAK3/2/1 (IC50=1/20/112 nM) and is orally active. Tofacitinib is used for the treatment of moderate to severe rheumatoid arthritis.

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

Tofacitinib-D3 Citrate is a deuterated compound of Tofacitinib Citrate. Tofacitinib Citrate (T2398) has a CAS number of 540737-29-9. Tofacitinib citrate is a a potent, cell-permeable inhibitor of JAK1/2/3 (IC50s: 1/20/112 nM).

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

(3S,4S)-Tofacitinib, a less active enantiomer of tofacitinib, is a Janus kinases inhibitor.

Tofacitinib-13C3 is a carbon-13 labeled variant of Tofacitinib. Tofacitinib (T6321) acts as a JAK3/2/1 inhibitor, exhibiting IC50 values of 1 nM, 20 nM, and 112 nM, respectively.

Tofacitinib Citrate (CP-690550 citrate) is a a potent, cell-permeable inhibitor of JAK1/2/3 (IC50s: 1/20/112 nM).

Tofacitinib HCl, also known as tasocitinib, CP-690550, is a Janus kinase (JAK) inhibitor. Tofacitinib HCl modulates the signaling pathway at the point of JAKs, preventing the phosphorylation and activation of STATs. JAK enzymes transmit cytokine signaling through pairing of JAKs (e.g., JAK1/JAK3, JAK1/JAK2, JAK1/TyK2, JAK2/JAK2). Tofacitinib HCl inhibited the in vitro activities of JAK1/JAK2, JAK1/JAK3, and JAK2/JAK2 combinations with IC50 of 406, 56, and 1377 nM, respectively.

Tofacitinib maleate, also known as tasocitinib, CP-690550, is a Janus kinase (JAK) inhibitor. Tofacitinib maleate modulates the signaling pathway at the point of JAKs, preventing the phosphorylation and activation of STATs. JAK enzymes transmit cytokine signaling through pairing of JAKs (e.g., JAK1/JAK3, JAK1/JAK2, JAK1/TyK2, JAK2/JAK2). Tofacitinib maleate inhibited the in vitro activities of JAK1/JAK2, JAK1/JAK3, and JAK2/JAK2 combinations with IC50 of 406, 56, and 1377 nM, respectively.

Tofacitinib-[13C3, 15N] (Standard) is a reference standard of Tofacitinib-[13C3, 15N] intended for quantitative analysis, quality control, and related biochemical research applications.