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4-Iodo-2-nitroaniline

Also known as: 4-Iodo-2-nitrophenylamine, 2-Amino-5-iodonitrobenzene, 2-Nitro-4-iodoaniline, Benzenamine, 4-iodo-2-nitro-, 4-Iodo-2-nitrobenzenamine

4-Iodo-2-nitroaniline (CAS 20691-72-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H5IN2O2 and a molecular weight of 264.021 g/mol. Key properties include a melting point of 120-123ºC, a boiling point of 352.9±27.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 167.2±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20691-72-9
Jingsj CID
J-1319194-1
Molecular Formula
C6H5IN2O2
Molecular Weight
264.021 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point120-123ºC
Boiling Point352.9±27.0 °C at 760 mmHg
Density2.1±0.1 g/cm3
Flash Point167.2±23.7 °C
Exact Mass263.939575
PSA71.84000
LogP3.19
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.726

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction

Customs & Trade Information

HS Code2921420090
SummaryHS:2921420090 aniline derivatives and their salts VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Iodo-2-nitroaniline?

The CAS number of 4-Iodo-2-nitroaniline is 20691-72-9.

What are the molecular formula and molecular weight of 4-Iodo-2-nitroaniline?

4-Iodo-2-nitroaniline has molecular formula C6H5IN2O2 and molecular weight 264.021 g/mol.

Is 4-Iodo-2-nitroaniline hazardous?

4-Iodo-2-nitroaniline has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 4-Iodo-2-nitroaniline?

For 4-Iodo-2-nitroaniline, Upstream Products: 2-Nitroaniline, 1-fluoro-4-iodo-2-nitrobenzene, N-(2-Nitrophenyl)acetamide; Downstream Products: 5-Iodo-1H-benzimidazol-2-amine, 3,3',4,4'-tetraaminobiphenyl, 2-Phenylbenzimidazole.

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-Iodo-2-nitroaniline (CAS 20691-72-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1319194-1 (accessed 2026-11-09).

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