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Iodonitrotetrazolium chloride

Also known as: INT, 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyl-2H-tetrazolium chloride, p-Iodonitrotetrazolium Violet, Iodonitrotetrazolium violet, 3-(4-Iodophenyl)-2-(4-nitrophenyl)-5-phenyl-2H-tetrazol-3-ium chloride, INT chloride, INT dye, 2-(4-Iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride, 2-(p-Iodophenyl)-3-(p-nitrophenyl)-5-phenyltetrazolium chloride, Iodonitrotetrazolium chloride (INT)

Iodonitrotetrazolium chloride (CAS 146-68-9) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H13ClIN5O2 and a molecular weight of 505.696 g/mol. Key properties include a melting point of 240 °C (dec.)(lit.), a boiling point of 567.5ºC at 760 mmHg and a flash point of 297ºC. It is classified under GHS with signal word Warning and hazard statements H371 — May cause damage to organs. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
146-68-9
Jingsj CID
J-49236-4
Molecular Formula
C19H13ClIN5O2
Molecular Weight
505.696 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point240 °C (dec.)(lit.)
Boiling Point567.5ºC at 760 mmHg
Flash Point297ºC
Exact Mass504.980225
PSA80.41000
LogP1.25100
Vapor Pressure6.76E-13mmHg at 25°C
Additional Propertysoluble

GHS Safety & Compliance

Health HazardSignal word: Warning
  • H371 — May cause damage to organs

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Iodonitrotetrazolium chloride?

The CAS number of Iodonitrotetrazolium chloride is 146-68-9.

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

Iodonitrotetrazolium chloride has molecular formula C19H13ClIN5O2 and molecular weight 505.696 g/mol.

Is Iodonitrotetrazolium chloride hazardous?

Iodonitrotetrazolium chloride has GHS signal word Warning and hazard statements H371 — May cause damage to organs.

What are the upstream and downstream products of Iodonitrotetrazolium chloride?

For Iodonitrotetrazolium chloride, Upstream Products: Butyl nitrite; Downstream Products: INT Formazan.

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

Last updated:

How to cite: Jingsj. "Iodonitrotetrazolium chloride (CAS 146-68-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49236-4 (accessed 2026-11-06).

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