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4-phenylazo-1-naphthylamine

Also known as: 4-(phenylazo)-1-naphthalenamine, 4-(phenyldiazenyl)naphthalen-1-amine, 4-Benzeneazo-1-naphthylamine, 4-Benzene-azo-α-naphthylamine, Naphthyl Red, Solvent Yellow 4, C.I. Solvent Yellow 4, CI NO 11350, Nubian Yellow TB, AURORA KA-7777, MFCD00004025, Naphthylrot

4-phenylazo-1-naphthylamine (CAS 131-22-6) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C16H13N3 and a molecular weight of 247.29500 g/mol. Key properties include a boiling point of 451.4ºC at 760mmHg, a density of 1.17g/cm3 and a flash point of 226.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
131-22-6
Jingsj CID
J-11293-6
Molecular Formula
C16H13N3
Molecular Weight
247.29500 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point451.4ºC at 760mmHg
Density1.17g/cm3
Flash Point226.8ºC
Exact Mass247.11100
PSA50.74000
LogP5.41860
Vapor Pressure2.45E-08mmHg at 25°C
Refractive Index1.647

Customs & Trade Information

HS Code2927000090
Summary2927000090 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-phenylazo-1-naphthylamine?

The CAS number of 4-phenylazo-1-naphthylamine is 131-22-6.

What are the molecular formula and molecular weight of 4-phenylazo-1-naphthylamine?

4-phenylazo-1-naphthylamine has molecular formula C16H13N3 and molecular weight 247.29500 g/mol.

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-phenylazo-1-naphthylamine (CAS 131-22-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11293-6 (accessed 2026-11-06).

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