Date published: 2026-4-2

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Baricitinib (CAS 1187594-09-7)

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Alternate Names:
INCB28050; LY3009104; 2-[1-ethylsulfonyl-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyrazol-1-yl]azetidin-3-yl]acetonitrile
Application:
Baricitinib is a selective inhibitor of JAK1 and JAK2
CAS Number:
1187594-09-7
Molecular Weight:
371.42
Molecular Formula:
C16H17N7O2S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Baricitinib, also known as INCB028050 or LY3009104, is a selective JAK1 and JAK2 inhibitor with nanomolar potency against JAK1 (5.9 nM) and JAK2 (5.7 nM). Baricitinib enzymes are involved in the regulation of immune responses, and Baricitinib is able to block their activity, thus reducing inflammation. It has also been shown to reduce the production of pro-inflammatory cytokines, such as TNF-α, IL-6, and IL-1β. Baricitinib has anti-inflammatory, immunomodulatory, anti-tumor, anti-viral, and anti-bacterial activities.


Baricitinib (CAS 1187594-09-7) References

  1. Baricitinib: First Global Approval.  |  Markham, A. 2017. Drugs. 77: 697-704. PMID: 28290136
  2. Baricitinib in patients with moderate-to-severe atopic dermatitis and inadequate response to topical corticosteroids: results from two randomized monotherapy phase III trials.  |  Simpson, EL., et al. 2020. Br J Dermatol. 183: 242-255. PMID: 31995838
  3. Comparative efficacy and safety of tofacitinib, baricitinib, upadacitinib, filgotinib and peficitinib as monotherapy for active rheumatoid arthritis.  |  Ho Lee, Y. and Gyu Song, G. 2020. J Clin Pharm Ther. 45: 674-681. PMID: 32495356
  4. Efficacy and Safety of Tofacitinib, Baricitinib, and Upadacitinib for Rheumatoid Arthritis: A Systematic Review and Meta-Analysis.  |  Wang, F., et al. 2020. Mayo Clin Proc. 95: 1404-1419. PMID: 32499126
  5. Baricitinib: A Review of Pharmacology, Safety, and Emerging Clinical Experience in COVID-19.  |  Jorgensen, SCJ., et al. 2020. Pharmacotherapy. 40: 843-856. PMID: 32542785
  6. A real-world disproportionality analysis of FDA Adverse Event Reporting System (FAERS) events for baricitinib.  |  Peng, L., et al. 2020. Expert Opin Drug Saf. 19: 1505-1511. PMID: 32693646
  7. Baricitinib treatment resolves lower-airway macrophage inflammation and neutrophil recruitment in SARS-CoV-2-infected rhesus macaques.  |  Hoang, TN., et al. 2021. Cell. 184: 460-475.e21. PMID: 33278358
  8. JAK selectivity and the implications for clinical inhibition of pharmacodynamic cytokine signalling by filgotinib, upadacitinib, tofacitinib and baricitinib.  |  Traves, PG., et al. 2021. Ann Rheum Dis. 80: 865-875. PMID: 33741556
  9. Baricitinib: From Rheumatoid Arthritis to COVID-19.  |  Assadiasl, S., et al. 2021. J Clin Pharmacol. 61: 1274-1285. PMID: 33870531
  10. Baricitinib for the treatment of atopic dermatitis.  |  Melo, A., et al. 2022. J Dermatolog Treat. 33: 2404-2413. PMID: 34379541
  11. Safety of baricitinib for the treatment of rheumatoid arthritis over a median of 4.6 and up to 9.3 years of treatment: final results from long-term extension study and integrated database.  |  Taylor, PC., et al. 2022. Ann Rheum Dis. 81: 335-343. PMID: 34706874
  12. Baricitinib for relapsing giant cell arteritis: a prospective open-label 52-week pilot study.  |  Koster, MJ., et al. 2022. Ann Rheum Dis. 81: 861-867. PMID: 35190385
  13. Baricitinib: A Review in Moderate to Severe Atopic Dermatitis.  |  Hoy, SM. 2022. Am J Clin Dermatol. 23: 409-420. PMID: 35503162
  14. Comparative efficacy and safety of abrocitinib, baricitinib, and upadacitinib for moderate-to-severe atopic dermatitis: A network meta-analysis.  |  Wan, H., et al. 2022. Dermatol Ther. 35: e15636. PMID: 35703351
  15. A Review of Safety Outcomes from Clinical Trials of Baricitinib in Rheumatology, Dermatology and COVID-19.  |  Bieber, T., et al. 2022. Adv Ther. 39: 4910-4960. PMID: 36063279

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Baricitinib, 5 mg

sc-364730
5 mg
$200.00

Baricitinib, 25 mg

sc-364730A
25 mg
$664.00