Tofacitinib HCl

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 563415

CAS#: 1803005-18-6 (HCl)

Description: Tofacitinib, also known as tasocitinib, CP-690550, is a Janus kinase (JAK) inhibitor. Tofacitinib 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 inhibited the in vitro activities of JAK1/JAK2, JAK1/JAK3, and JAK2/JAK2 combinations with IC50 of 406, 56, and 1377 nM, respectively.

Chemical Structure

Tofacitinib HCl
CAS# 1803005-18-6 (HCl)

Theoretical Analysis

MedKoo Cat#: 563415
Name: Tofacitinib HCl
CAS#: 1803005-18-6 (HCl)
Chemical Formula: C16H21ClN6O
Exact Mass:
Molecular Weight: 348.835
Elemental Analysis: C, 55.09; H, 6.07; Cl, 10.16; N, 24.09; O, 4.59

Price and Availability

This product is not in stock, which may be available by custom synthesis. For cost-effective reason, minimum order is 1g (price is usually high, lead time is 2~3 months, depending on the technical challenge). Quote less than 1g will not be provided. To request quote, please email to sales or click below button.
Note: Price will be listed if it is available in the future.

Request quote for custom synthesis

Related CAS #: 540737-29-9 (citrate)   477600-75-2 (free base)   1443435-54-8 (oxalate)   1443435-50-4 (tartrate)   1803005-18-6 (HCl)   1803005-19-7 (HBr)   2052885-67-1 (maleate)    

Synonym: Tofacitinib HCl; Tofacitinib hydrochloride; CP690550; CP-690550; CP 690550; CP-690550 HCl; Tofacitinib; tasocitinib. Trade name Xeljanz.

IUPAC/Chemical Name: 3-((3R,4R)-4-Methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)piperidin-1-yl)-3-oxopropanenitrile hydrochloride


InChi Code: InChI=1S/C16H20N6O.ClH/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;/h4,7,10-11,13H,3,5,8-9H2,1-2H3,(H,18,19,20);1H/t11-,13+;/m1./s1

SMILES Code: N#CCC(N1C[C@H](N(C)C2=C3C(NC=C3)=NC=N2)[C@H](C)CC1)=O.[H]Cl

Appearance: Solid powder

Purity: >98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

Preparing Stock Solutions

The following data is based on the product molecular weight 348.835 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

Molarity Calculator

Calculate the mass, volume, or concentration required for a solution.

*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.


Dilution Calculator

Calculate the dilution required to prepare a stock solution.

1: Barrera MJ, Aguilera S, Castro I, Matus S, Carvajal P, Molina C, González S, Jara D, Hermoso M, González MJ. Tofacitinib counteracts IL-6 overexpression induced by deficient autophagy: implications in Sjögren's syndrome. Rheumatology (Oxford). 2020 Nov 12:keaa670. doi: 10.1093/rheumatology/keaa670. Epub ahead of print. PMID: 33216905.

2: Song GG, Lee YH. Relative efficacy and safety of tofacitinib for treating psoriasis: A Bayesian network meta-analysis of randomized controlled trials. Int J Clin Pharmacol Ther. 2020 Nov 19. doi: 10.5414/CP203831. Epub ahead of print. PMID: 33210996.

3: Sedano R, Jairath V. Tofacitinib Induced Long-term Clinical, Endoscopic, and Histological Remission as a 6th Line Agent in Medically Refractory Ulcerative Colitis. Inflamm Bowel Dis. 2020 Nov 17:izaa296. doi: 10.1093/ibd/izaa296. Epub ahead of print. PMID: 33200783.

4: Li X, Wu X, Elston DM, Zhang J, Zhou C. Hypohidrotic Ectodermal Dysplasia with c.28delG Mutation in Ectodysplasin A Gene and Severe Atopic Dermatitis Treated Successfully with Tofacitinib. Acta Derm Venereol. 2020 Nov 16. doi: 10.2340/00015555-3693. Epub ahead of print. PMID: 33196100.

5: Bae D, Choi Y, Lee J, Ha N, Suh D, Baek J, Park J, Son W. M-134, a novel HDAC6-selective inhibitor, markedly improved arthritic severity in a rodent model of rheumatoid arthritis when combined with tofacitinib. Pharmacol Rep. 2020 Nov 13. doi: 10.1007/s43440-020-00188-x. Epub ahead of print. PMID: 33188511.

6: You H, Xu D, Hou Y, Zhou J, Wang Q, Li M, Zeng X. Tofacitinib as a possible treatment for skin thickening in diffuse cutaneous systemic sclerosis. Rheumatology (Oxford). 2020 Nov 14:keaa613. doi: 10.1093/rheumatology/keaa613. Epub ahead of print. PMID: 33188425.

7: Sleutjes JAM, de Vries AC, van der Woude CJ, Roeters van Lennep JE. Lipid Profiles in Patients With Ulcerative Colitis Receiving Tofacitinib-Implications for Cardiovascular Risk and Patient Management. Inflamm Bowel Dis. 2020 Nov 6:izaa295. doi: 10.1093/ibd/izaa295. Epub ahead of print. PMID: 33155646.

8: Watanabe R, Hashimoto M, Morinobu A. Correspondence on 'The use of tocilizumab and tofacitinib in patients with resolved hepatitis B infection: a case series'. Ann Rheum Dis. 2020 Nov 3:annrheumdis-2020-219270. doi: 10.1136/annrheumdis-2020-219270. Epub ahead of print. PMID: 33144301.

9: Cohen SB, Tanaka Y, Mariette X, Curtis JR, Lee EB, Nash P, Winthrop KL, Charles-Schoeman C, Wang L, Chen C, Kwok K, Biswas P, Shapiro A, Madsen A, Wollenhaupt J. Long-term safety of tofacitinib up to 9.5 years: a comprehensive integrated analysis of the rheumatoid arthritis clinical development programme. RMD Open. 2020 Oct;6(3):e001395. doi: 10.1136/rmdopen-2020-001395. PMID: 33127856.

10: Sandborn WJ, Peyrin-Biroulet L, Quirk D, Wang W, Nduaka CI, Mukherjee A, Su C, Sands BE. Efficacy and Safety of Extended Induction with Tofacitinib for the Treatment of Ulcerative Colitis. Clin Gastroenterol Hepatol. 2020 Oct 27:S1542-3565(20)31496-8. doi: 10.1016/j.cgh.2020.10.038. Epub ahead of print. PMID: 33127596.

11: Crespo Cruz A, Del Boz J, Romero Gómez C. Good Response to Tofacitinib in Refractory Amyopathic Dermatomyositis. Actas Dermosifiliogr. 2020 Oct 27:S0001-7310(20)30434-8. English, Spanish. doi: 10.1016/ Epub ahead of print. PMID: 33127420.

12: Jia E, Yan G, Xiao M, Geng H, Wei J, Zhang J. Refractory ulcerations associated with livedoid vasculopathy successfully treated with tofacitinib. Dermatol Ther. 2020 Oct 28:e14470. doi: 10.1111/dth.14470. Epub ahead of print. PMID: 33112475.

13: Verstockt B, Pouillon L, Bossuyt P. Tofacitinib and subacute pneumonitis, don't hold your breath. J Crohns Colitis. 2020 Oct 26:jjaa218. doi: 10.1093/ecco-jcc/jjaa218. Epub ahead of print. PMID: 33104197.

14: Jerjen R, Meah N, Trindade de Carvalho L, Wall D, Eisman S, Sinclair R. Treatment of alopecia areata in pre-adolescent children with oral tofacitinib: A retrospective study. Pediatr Dermatol. 2020 Oct 25. doi: 10.1111/pde.14422. Epub ahead of print. PMID: 33099833.

15: Dincer D, Tanacan E, Kose Ozkan C. Efficacy of systemic minoxidil and tofacitinib combination in treatment-resistant alopecia universalis. J Cosmet Dermatol. 2020 Oct 24. doi: 10.1111/jocd.13812. Epub ahead of print. PMID: 33098729.

16: Trigo-Vicente C, Gimeno-Ballester V, López-Del Val A. Cost-effectiveness analysis of infliximab, adalimumab, golimumab, vedolizumab and tofacitinib for moderate to severe ulcerative colitis in Spain. Eur J Hosp Pharm. 2020 Nov;27(6):355-360. doi: 10.1136/ejhpharm-2018-001833. Epub 2019 May 7. PMID: 33097619.

17: Bishu S, Melia J, Sharfman W, Lao CD, Fecher LA, Higgins PD. Efficacy and outcome of Tofacitinib in Immune checkpoint inhibitor colitis. Gastroenterology. 2020 Oct 20:S0016-5085(20)35316-6. doi: 10.1053/j.gastro.2020.10.029. Epub ahead of print. PMID: 33096100.

18: Razmjou AA, Brook J, Elashoff D, Kaeley G, Choi S, Kermani T, Ranganath VK. Ultrasound and multi-biomarker disease activity score for assessing and predicting clinical response to tofacitinib treatment in patients with rheumatoid arthritis. BMC Rheumatol. 2020 Oct 19;4:55. doi: 10.1186/s41927-020-00153-4. PMID: 33089069; PMCID: PMC7569763.

19: Bing SJ, Lyu C, Xu B, Wandu WS, Hinshaw SJ, Furumoto Y, Caspi RR, Gadina M, Gery I. Tofacitinib inhibits the development of experimental autoimmune uveitis and reduces the proportions of Th1 but not of Th17 cells. Mol Vis. 2020 Sep 26;26:641-651. PMID: 33088168; PMCID: PMC7531779.

20: Li B, Li GW, Xue L, Chen YY. Rapid remission of refractory synovitis, acne, pustulosis, hyperostosis, and osteitis syndrome in response to the Janus kinase inhibitor tofacitinib: A case report. World J Clin Cases. 2020 Oct 6;8(19):4527-4534. doi: 10.12998/wjcc.v8.i19.4527. PMID: 33083414; PMCID: PMC7559655.