JAK INHIBITOR I

Synonym(s):2-(1,1-Dimethylethyl)-9-fluoro-3,6-dihydro-7H-benz[h]-imidaz[4,5-f]isoquinolin-7-one, P6, Pyridone 6, DBI, JAK1 Inhibitor I, JAK2 Inhibitor I, JAK3 Inhibitor X;2-(1,1-Dimethylethyl)-9-fluoro-3,6-dihydro-7H-benz[h]-imidaz[4,5-f]isoquinolin-7-one, Pyridone 6, P6, DBI, JAK1 Inhibitor I, JAK2 Inhibitor I, JAK3 Inhibitor X;InSolution JAK Inhibitor I - CAS 457081-03-7 - Calbiochem;JAK Inhibitor I - CAS 457081-03-7 - Calbiochem

CAS NO.：457081-03-7
Empirical Formula: C18H16FN3O
Molecular Weight: 309.34
MDL number: MFCD17019334
SAFETY DATA SHEET (SDS)
Update Date: 2026-07-27 17:00:41

What is JAK INHIBITOR I?

Description

Pyridone 6 (457081-03-7) is a potent, ATP-competitive pan-JAK inhibitor. Inhibits 1, 2 and 3 (IC50=1, 5 and 15 nM respectively) as well as JAK family member Tyk2 (IC50=1 nM).1 Also tested against 21 other kinases with inhibition ranging from 130 nm to >10 mM. Inhibits IL2 and IL4-dependent proliferation of CTLL cells.1 Induces intermediate mesoderm differentiation from embryonic stem cells in a cocktail with LY-294002, CCG-1423 and retinoic acid.2 Potently inhibits STAT1, STAT5 and STAT6 phosphorylation and ameliorates allergic skin inflammation in a mouse model.3 Suppresses asthmatic responses in a mouse allergic asthma model.4

The Uses of JAK INHIBITOR I

Pyridone 6 is a ATP-competitive JAK inhibitor in clinical development for the treatment of myeloproliferative neoplasms and B cell acute lymphoblastic leukemia.

What are the applications of Application

JAK Inhibitor I is an inhibitor of JAK1, JAK2, and JAK3

Definition

ChEBI: 2-tert-butyl-9-fluoro-1,6-dihydrobenzo[h]imidazo[4,5-f]isoquinolin-7-one is an organic heterotetracyclic compound that is 1,6-dihydrobenzo[h]imidazo[4,5-f]isoquinolin-7-one bearing additional tert-butyl and fluoro substituents at positions 2 and 9 respectively. It has a role as an EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor. It is an organic heterotetracyclic compound and an organofluorine compound.

Storage

Store at -20°C

References

Thompson et al. (2002) Photochemical preparation of a pyridine containing tetracycle: a JAK protein kinase inhibitor Med. Chem. Lett. 12 1219 Mae et al. (2010) Combination of small molecules enhances differentiation of mouse embryonic stem cells into intermediate mesoderm through BMP7-positive cells; Biochem. Biophys. Res. Commun. 393 877 Nakagawa et al. (2011) Pyridone 6, a pan-JAK inhibitor, ameliorates allergic skin inflammation of NC/Nga mice via suppression of Th2 and enhancement of Th17; Immunol. 187 4611 Moriwaki et al. (2011) IL-13 suppresses double-stranded RNA-induced IFN-l production in lung cells; Biochem. Biophys. Res. Commun. 404 922

Properties of JAK INHIBITOR I

Melting point:	>178°C (dec.)
Boiling point:	646.5±55.0 °C(Predicted)
Density	1.328
storage temp.	-20C
solubility	Soluble in DMSO (30 mg/ml)
form	Off-white solid
pka	11.35±0.20(Predicted)
color	Off-white
Stability:	Stable for 2 years from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.

Safety information for JAK INHIBITOR I

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.