4'-Chloro-4-dimethylaminoazobenzene

4'-氯-4-二甲氨基偶氮苯

Also known as: 4-Dimethylamino-4'-chloroazobenzene, 4-[(4-Chlorophenyl)azo]-N,N-dimethylaniline, 4-[(4-Chlorophenyl)diazenyl]-N,N-dimethylaniline, N,N-Dimethyl-p-[(p-chlorophenyl)azo]aniline, p-Chloro-p'-dimethylaminoazobenzene, p-Chlorodimethylaminoazobenzene, p-Chlorobenzeneazodimethylaniline, 4-Chlor-4'-N,N-dimethylaminoazobenzol

4'-Chloro-4-dimethylaminoazobenzene (CAS 2491-76-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C14H14ClN3 and a molecular weight of 259.73400 g/mol. It is also known as 4-Dimethylamino-4'-chloroazobenzene, 4-[(4-Chlorophenyl)azo]-N,N-dimethylaniline and 4-[(4-Chlorophenyl)diazenyl]-N,N-dimethylaniline. Key properties include a melting point of 159ºC, a boiling point of 404.2ºC at 760mmHg, a density of 1.13g/cm3 and a flash point of 198.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2491-76-1
Jingsj CID: J-12676-2
Molecular Formula: C₁₄H₁₄ClN₃
Chinese Name: 4'-氯-4-二甲氨基偶氮苯
Molecular Weight: 259.73400 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	159ºC
Boiling Point	404.2ºC at 760mmHg
Density	1.13g/cm3
Flash Point	198.2ºC
Exact Mass	259.08800
PSA	27.96000
LogP	4.82140
Vapor Pressure	9.63E-07mmHg at 25°C
Refractive Index	1.581

Customs & Trade Information

HS Code	2927000090
Summary	2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4'-Chloro-4-dimethylaminoazobenzene?

The CAS number of 4'-Chloro-4-dimethylaminoazobenzene is 2491-76-1.

What are the molecular formula and molecular weight of 4'-Chloro-4-dimethylaminoazobenzene?

4'-Chloro-4-dimethylaminoazobenzene has molecular formula C14H14ClN3 and molecular weight 259.73400 g/mol.

What are the upstream and downstream products of 4'-Chloro-4-dimethylaminoazobenzene?

For 4'-Chloro-4-dimethylaminoazobenzene, Upstream Products: 4-Chloroaniline, N,N-Dimethyl-1,4-benzenediamine, 4,4'-Methylenebis(N,N-dimethylaniline); Downstream Products: 4-Chloroaniline, N,N-Dimethyl-1,4-benzenediamine.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4'-Chloro-4-dimethylaminoazobenzene (CAS 2491-76-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12676-2 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.