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4-Amino-3-chlorobenzonitrile

Also known as: 2-Chloro-4-cyanoaniline, 3-Chloro-4-aminobenzonitrile, 1-Amino-2-chloro-4-cyanobenzene, 4-Amino-3-chlorobenzenecarbonitrile, 4-Cyano-2-chloroaniline, Benzonitrile, 4-amino-3-chloro-, MFCD00052917

4-Amino-3-chlorobenzonitrile (CAS 21803-75-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H5ClN2 and a molecular weight of 152.581 g/mol. Key properties include a melting point of 102-105 °C(lit.), a boiling point of 277.8±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 121.8±23.2 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21803-75-8
Jingsj CID
J-42235-5
Molecular Formula
C7H5ClN2
Molecular Weight
152.581 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point102-105 °C(lit.)
Boiling Point277.8±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point121.8±23.2 °C
Exact Mass152.014130
PSA49.81000
LogP2.15
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.610

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds 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-Amino-3-chlorobenzonitrile?

The CAS number of 4-Amino-3-chlorobenzonitrile is 21803-75-8.

What are the molecular formula and molecular weight of 4-Amino-3-chlorobenzonitrile?

4-Amino-3-chlorobenzonitrile has molecular formula C7H5ClN2 and molecular weight 152.581 g/mol.

Is 4-Amino-3-chlorobenzonitrile hazardous?

4-Amino-3-chlorobenzonitrile has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4-Amino-3-chlorobenzonitrile?

For 4-Amino-3-chlorobenzonitrile, Upstream Products: 4-Aminobenzonitrile, 3-Chloro-4-nitrobenzonitrile; Downstream Products: 2-Mercaptobenzothiazole-6-carbonitrile, 4-amino-3-bromo-5-chlorobenzonitrile, Methyl 4-amino-3-chlorobenzoate.

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-Amino-3-chlorobenzonitrile (CAS 21803-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42235-5 (accessed 2026-11-09).

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