4,5-Dichloro-2-nitroaniline

Also known as: 3,4-Dichloro-6-nitroaniline, 2-Nitro-4,5-dichlorobenzenamine, 2-Nitro-4,5-dichloroaniline, 4,5-Dichloro-2-nitrobenzenamine, 4,5-Dichlor-2-nitroanilin, 4,5-dichloro-2-nitro-aniline, 4,5-dichloro-2-nitrophenylamine, Benzenamine, 4,5-dichloro-2-nitro-, TIMTEC-BB SBB003477, Maribavir Impurity 58

4,5-Dichloro-2-nitroaniline (CAS 6641-64-1) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2N2O2 and a molecular weight of 207.014 g/mol. Key properties include a melting point of 177-179 °C(lit.), a boiling point of 347.1±37.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 163.7±26.5 °C. It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6641-64-1
Jingsj CID: J-1397-8
Molecular Formula: C₆H₄Cl₂N₂O₂
Molecular Weight: 207.014 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	177-179 °C(lit.)
Boiling Point	347.1±37.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	163.7±26.5 °C
Exact Mass	205.964981
PSA	71.84000
LogP	3.55
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.656

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger

H300
H310
H330 — Fatal if inhaled
H373 — May cause damage to organs through prolonged exposure
H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code	2921420090
Summary	HS: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 4,5-Dichloro-2-nitroaniline?

The CAS number of 4,5-Dichloro-2-nitroaniline is 6641-64-1.

What are the molecular formula and molecular weight of 4,5-Dichloro-2-nitroaniline?

4,5-Dichloro-2-nitroaniline has molecular formula C6H4Cl2N2O2 and molecular weight 207.014 g/mol.

Is 4,5-Dichloro-2-nitroaniline hazardous?

4,5-Dichloro-2-nitroaniline has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

What are the upstream and downstream products of 4,5-Dichloro-2-nitroaniline?

For 4,5-Dichloro-2-nitroaniline, Upstream Products: 1,2-Dichloro-4-nitrobenzene, 1,2,4-Trichloro-5-nitrobenzene, N-(4,5-Dichloro-2-nitrophenyl)acetamide; Downstream Products: 2-Bromo-5,6-dichloro-1H-benzimidazole, 5,6-dichloro-1H-benzimidazol-2-amine, 1,2-Dichloro-4-nitrobenzene.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-Dichloro-2-nitroaniline (CAS 6641-64-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1397-8 (accessed 2026-11-09).

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