7-Chloro-9-oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile Property

Melting point:

220(dec.)℃

Boiling point:

604.9±55.0 °C(Predicted)

Density 

1.66

storage temp. 

Store at -20°C

solubility 

insoluble in H2O; ≥1.83 mg/mL in EtOH with gentle warming and ultrasonic; ≥13.35 mg/mL in DMSO

form 

solid

pka

-9.42±0.20(Predicted)

color 

Light yellow to yellow

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H317May cause an allergic skin reaction

H319Causes serious eye irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

7-Chloro-9-oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile Chemical Properties,Usage,Production

Uses

7-Chloro-9-oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile is used in the synthesis and biological evaluation of 9-Oxo-9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile analogues as potential Inhibitors of deubiquitinating enzymes.

Biological Activity

hbx 41108 is a potent inhibitor of usp7 with ic50 value of 424 nm [1].ubiquitin-specific-processing protease 7 (usp7) is a ubiquitin specific protease and removes ubiquitin from specific protein substrates. usp7 can deubiquitinate p53, protecting p53 from mdm2-mediated degradation and involving the oncogenic stabilization of p53.hbx 41108 is an uncompetitive and reversible usp7 inhibitor. hbx 41108 inhibited usp7-mediated p53 deubiquitination with ic50 value of 0.8 μm in a dose-dependent way and was only weakly active against the aspartic, serine and metalloproteases tested with ic50 > 10 μm. in hct116 cells, hbx 41108 increased the levels of p53 and p21cip1/waf, which was the product of p53 target genes. in hek293 cells, hbx 41108 increased the level of polyubiquitinated forms of p53 and reduced mdm2 levels. in hct116 colon cancer cells, hbx 41108 inhibited cell proliferation with ic50 value of 1 μm in a dose-dependent way and induced apoptosis in a dose-dependent manner [1]. in cos7 cells, hbx 41108 inhibited pparγ stability induced by usp7 and decreased the basal transcriptional activity of pparγ by 70% [2].

storage

Store at -20°C

References

[1]. colland f, formstecher e, jacq x, et al. small-molecule inhibitor of usp7/hausp ubiquitin protease stabilizes and activates p53 in cells. mol cancer ther, 2009, 8(8): 2286-2295.
[2]. lee kw, cho jg, kim cm, et al. herpesvirus-associated ubiquitin-specific protease (hausp) modulates peroxisome proliferator-activated receptor γ (pparγ) stability through its deubiquitinating activity. j biol chem, 2013, 288(46): 32886-32896.