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Diphenyleneiodonium chloride

Also known as: DPI, DPI chloride, Dibenziodolium chloride, Diphenyleneiodonium chloride (DPI), MFCD00214165, Dibenz[b,d]iodolium chloride

Diphenyleneiodonium chloride (CAS 4673-26-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H8ClI and a molecular weight of 314.54900 g/mol. Key property: a melting point of 312-322ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4673-26-1
Jingsj CID
J-7749-6
Molecular Formula
C12H8ClI
Molecular Weight
314.54900 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point312-322ºC
Exact Mass313.93600
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Activity & Biological Data

TargetNOX[1] EC50: 1 to 3 μM (TRPA1)[1]
Additional Information[1]. Suzuki H, et al. The NADPH oxidase inhibitor diphenyleneiodonium activates the human TRPA1 nociceptor. Am J Physiol Cell Physiol. 2014 Aug 15;307(4):C384-94. [2]. He YF, et al. Diphenyleneiodonium protects preoligodendrocytes against endotoxin-activated microglial NADPH oxidase-generated peroxynitrite in a neonatal rat model of periventricular leukomalacia. Brain Res. 2013 Jan 25;1492:108-21.

Customs & Trade Information

HS Code2903999090
Summary2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diphenyleneiodonium chloride?

The CAS number of Diphenyleneiodonium chloride is 4673-26-1.

What are the molecular formula and molecular weight of Diphenyleneiodonium chloride?

Diphenyleneiodonium chloride has molecular formula C12H8ClI and molecular weight 314.54900 g/mol.

What are the upstream and downstream products of Diphenyleneiodonium chloride?

For Diphenyleneiodonium chloride, Upstream Products: 2'-iodo-[1,1'-biphenyl]-2-amine, 2,2'-Diiodobiphenyl; Downstream Products: 2'-Chloro-[1,1'-biphenyl]-2-carboxylic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Diphenyleneiodonium chloride (CAS 4673-26-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7749-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.