YYSW001 is a selective and orally acrive JAK1 inhibitor with an IC50 of 6 nM and a Kd of 32.32 μM. YYSW001 blocks JAK1-dependent phosphorylation of STAT6, as well as IL-6-induced phosphorylation of STAT3. YYSW001 suppresses pro-inflammatory cytokine levels, reduces paw swelling, lowers clinical arthritis scores, alleviates joint damage and decreases bone loss. YYSW001 is applicable for the research of rheumatoid arthritis.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.