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1,3-PBIT (dihydrobromide)

Catalog No.
C5674
potent inhibitor of iNOS
Grouped product items
SizePriceStock Qty
50mg
$118.00
Ship with 5-10 days
100mg
$206.00
Ship with 5-10 days
For scientific research use only and should not be used for diagnostic or medical purposes.

Tel: +1-832-696-8203

Email: [email protected]

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Background

1,3-PBIT (dihydrobromide) is a potent and selective iNOS inhibitor with Ki value of 47 nM [1].

Nitric oxide (NO) is an endogenously produced inorganic free radical gas which has been implicated in blood pressure homeostasis, platelet aggregation, neurotransmission, and immunological defense mechanisms. NO is synthesized by three isoforms of nitric oxide synthase (NOS): nNOS, eNOS and iNOS [1].

1,3-PBIT, also known as S,S’-(1,3-Phenylenebis(1,2-ethanediyl))bisisothiourea, is a potent and selective iNOS inhibitor. 1,3-PBIT inhibited purified human iNOS, eNOS and nNOS with Ki values of 47 nM, 9 μM and 0.25 μM, respectively. 1,3-PBIT exhibited 190-fold selective against iNOS versus eNOS. In DLD-1 cells, 1,3-PBIT inhibited human iNOS with IC50 value of 150 μM, presumably to poor membrane permeability [1].

In conscious male Sprague-Dawley rats, 1,3-PBIT (10mg/kg, ip; 1 h after endotoxin) inhibited endotoxin-induced decrease in MAP, renal CYP 4A1/A3 protein level and CYP 4A activity and increase in systemic and renal nitrite production [2].

References:
[1].  Garvey EP, Oplinger JA, Tanoury GJ, et al. Potent and selective inhibition of human nitric oxide synthases. Inhibition by non-amino acid isothioureas. J Biol Chem. 1994 Oct 28;269(43):26669-76.
[2].  Tunctan B, Yaghini FA, Estes A, et al. Inhibition by nitric oxide of cytochrome P450 4A activity contributes to endotoxin-induced hypotension in rats. Nitric Oxide. 2006 Feb;14(1):51-7.

Chemical Properties

Physical AppearanceA crystalline solid
StorageStore at -20°C
M.Wt444.2
Cas No.200716-66-1
FormulaC12H18N4S2·2HBr
Solubility≤100mg/ml in H2O
Chemical NameS,S'-1,3-phenylene-bis(1,2-ethanediyl)bis-isothiourea, dihydrobromide
SDFDownload SDF
Canonical SMILESN/C(SCCC1=CC(CCS/C(N)=N/[H])=CC=C1)=N/[H].Br.Br
Shipping ConditionSmall Molecules with Blue Ice, Modified Nucleotides with Dry Ice.
General tips We do not recommend long-term storage for the solution, please use it up soon.

Quality Control

Quality Control & MSDS

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Chemical structure

1,3-PBIT (dihydrobromide)