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

MedKoo CAT#: 407443

CAS#: 2226521-65-7

Description: FM-381 is a Chemical Probe For JAK3 and JAK3 specific reversible covalent inhibitor.

Price and Availability

Size Price Shipping out time Quantity
100mg USD 1150 2 Weeks
200mg USD 1950 2 Weeks
500mg USD 2750 2 Weeks
1g USD 3650 2 Weeks
2g USD 4850 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-01-18. Prices are subject to change without notice.

FM-381, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 407443
Name: FM-381
CAS#: 2226521-65-7
Chemical Formula: C24H24N6O2
Exact Mass: 428.1961
Molecular Weight: 428.496
Elemental Analysis: C, 67.27; H, 5.65; N, 19.61; O, 7.47

Synonym: FM-381; FM 381; FM381.

IUPAC/Chemical Name: (E)-2-cyano-3-(5-(1-cyclohexyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridin-2-yl)furan-2-yl)-N,N-dimethylacrylamide


InChi Code: InChI=1S/C24H24N6O2/c1-29(2)24(31)15(13-25)12-17-8-9-20(32-17)23-28-19-14-27-22-18(10-11-26-22)21(19)30(23)16-6-4-3-5-7-16/h8-12,14,16H,3-7H2,1-2H3,(H,26,27)/b15-12+


Technical Data

Solid powder

>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).

Soluble in DMSO

Shelf Life:
>2 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:

Additional Information

AK kinases are effectors of the JAK-STAT signaling pathway, which is triggered by ligand binding to a cognate receptor resulting in activation of JAK by phosphorylation of key tyrosine residues within the catalytic domain. After activation, tyrosine resides in the receptor intracellular region are also phosphorylated which triggers recruitment and phosphorylation of the principal downstream effectors, the STATs. Phosphorylated STATs dimerize and translocate to the nucleus where they initiate transcription of specific responsive genes