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Catalog No. Product Name Application Product Information

Diphenyleneiodonium chloride

GPR3 agonist/NOS/ NADPH oxidases inhibitor
Diphenyleneiodonium chloride has been shown to be a potent irreversible inhibitor of NOS2 (iNOS) from macrophages and NOS3 (eNOS) from endothelial cells.

1400W Dihydrochloride

INOS inhibitor
1400W Dihydrochloride is a slow, tight binding, potent and highly selective inhibitor of inducible nitric oxide synthase (Kd = 7 nM). Selective over nNOS and eNOS (Ki values are 2 and 50 μM respectively). Cell-permeable and active in vivo.


NOS cofactor
Biopterin is the oxidized form of tetrahydro-L-biopterin (BH4), a nitric oxide synthase (NOS) cofactor. L-Biopterin can be reduced to BH4 via thioredoxin reductase followed by dihydropteridine reductase or reduced glutathione. It is extremely toxic to human melanocytes in culture (IC50 = 0.2 uM after 48 hrs).


iNOS Inhibitor
GW274150 is a potent and highly selective inhibitor of iNOS, reduces experimental renal ischemia/reperfusion injury.

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