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4-Iodobenzene-1,2-diamine

Also known as: 1,2-Diamino-4-iodobenzene, 4-Iodo-1,2-phenylenediamine, 4-Iodo-o-phenylenediamine, 4-Iodo-1,2-benzenediamine, 1,2-Benzenediamine, 4-iodo-, 2-amino-4-iodophenylamine, 4-iodobenzene-1,2-diamine

4-Iodobenzene-1,2-diamine (CAS 21304-38-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H7IN2 and a molecular weight of 234.038 g/mol. Key properties include a melting point of 73-77°C, a boiling point of 339.0±32.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 158.8±25.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21304-38-1
Jingsj CID
J-1146566-0
Molecular Formula
C6H7IN2
Molecular Weight
234.038 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point73-77°C
Boiling Point339.0±32.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point158.8±25.1 °C
Exact Mass233.965378
PSA52.04000
LogP2.23
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.757
Storage Conditions2-8°C

Frequently Asked Questions

What is the CAS number of 4-Iodobenzene-1,2-diamine?

The CAS number of 4-Iodobenzene-1,2-diamine is 21304-38-1.

What are the molecular formula and molecular weight of 4-Iodobenzene-1,2-diamine?

4-Iodobenzene-1,2-diamine has molecular formula C6H7IN2 and molecular weight 234.038 g/mol.

What are the upstream and downstream products of 4-Iodobenzene-1,2-diamine?

For 4-Iodobenzene-1,2-diamine, Upstream Products: 4-Iodo-2-nitroaniline, 2-Nitroaniline; Downstream Products: 5-Iodo-1H-benzimidazol-2-amine, 5-iodo-2-methyl-1H-benzimidazole, 6-Iodoquinoxaline.

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

Last updated:

How to cite: Jingsj. "4-Iodobenzene-1,2-diamine (CAS 21304-38-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1146566-0 (accessed 2026-11-09).

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