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Fórmula empírica (notación de Hill):
C16H20N6O · C6H8O7
Número CAS:
Peso molecular:
504.49
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77
MDL number:
Servicio técnico
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Permítanos ayudarleNombre del producto
Tofacitinib citrate, ≥98% (HPLC)
Quality Level
assay
≥98% (HPLC)
form
powder
color
white to beige
solubility
DMSO: 5 mg/mL (clear solution; warmed)
storage temp.
room temp
SMILES string
OC(=O)CC(O)(CC(O)=O)C(O)=O.C[C@@H]1CCN(C[C@@H]1N(C)c2ncnc3[nH]ccc23)C(=O)CC#N
InChI
1S/C16H20N6O.C6H8O7/c1-11-5-8-22(14(23)3-6-17)9-13(11)21(2)16-12-4-7-18-15(12)19-10-20-16;7-3(8)1-6(13,5(11)12)2-4(9)10/h4,7,10-11,13H,3,5,8-9H2,1-2H3,(H,18,19,20);13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)/t11-,13+;/m1./s1
InChI key
SYIKUFDOYJFGBQ-YLAFAASESA-N
Gene Information
human ... JAK1(3716), JAK2(3717), JAK3(3718), TYK2(7297)
General description
Tofacitinib is a synthetic molecule corresponding to a molecular weight of 312.4 Da and is permeable by transcellular diffusion.
Application
Tofacitinib citrate has been used:
- as a ligand for human serum albumin in fluorescence quenching, dynamic light scattering (DLS) measurements, differential scanning calorimetry and molecular docking studies
- as a medium supplement for full depth articular cartilage (FDC) explants to monitor cytokine-induced proteoglycan loss
- as a Janus kinase inhibitor in MCF7 breast cancer cells
Biochem/physiol Actions
Tofacitinib is a potent inhibitor of Janus kinase 3 (JAK3) with some JAK-1 inhibitory activity as well. It blocks downstream STAT signaling resulting in potent inhibition of inflammatory cytokines with resultant immunosuppressive and anti-inflammatory activity. Tofacitinib is being investigated for for several autoimmune disorders including, rheumatoid arthritis, psoriasis and dry eye.
Tofacitinib is a potent inhibitor of Janus kinase 3 (JAK3).
Features and Benefits
This compound is a featured product for Kinase Phosphatase Biology research. Click here to discover more featured Kinase Phosphatase Biology products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
Other Notes
Tofacitinib has been expertly reviewed and recommended by the Chemical Probes Portal. For more information, please visit the Tofacitinib probe summary on the Chemical Probes Portal website.
signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Repr. 2
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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The mechanism of action of tofacitinib-an oral Janus kinase inhibitor for the treatment of rheumatoid arthritis
Hodge JA, et al.
Clinical and Experimental Rheumatology, 34(2), 318-328 (2016)
Ben X Wang et al.
Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research, 37(4), 147-152 (2017-04-08)
Aicardi-Goutières syndrome (AGS) is an early-onset, genetic disease characterized by recurrent fever, multifocal lesions of the brain, and systemic autoimmunity. We report on 3 AGS patients, 2 siblings with an RNASEH2A gene mutation and 1 patient with a SAMHD1 gene
Usir S Younis et al.
AAPS PharmSciTech, 20(5), 167-167 (2019-04-18)
Preformulation studies on tofacitinib citrate, a small molecule JAK3 specific inhibitor, have not been previously reported in literature. We therefore conducted several preformulation studies on tofacitinib citrate, and its free base, to better understand factors that affect its solubility, stability

