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Sudan Red 7B

Also known as: Solvent Red 19, Fat Red 7B, Oil Violet, C.I. 26050, Ceres Red 7B, Sudanrot 7B, Lacquer Red V3B, Typogen Carmine, Hexatype Carmine B, Organol Bordeaux B, Special Blue X 2137, N-Ethyl-1-((4-(phenylazo)phenyl)azo)-2-naphthalenamine, 1-[4-(Phenylazo)phenylazo]-2-ethylaminonaphthalene

Sudan Red 7B (CAS 6368-72-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C24H21N5 and a molecular weight of 379.457 g/mol. Key properties include a melting point of 130ºC (dec.)(lit.), a boiling point of 606.6±40.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 320.7±27.3 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6368-72-5
Jingsj CID
J-1361756-6
Molecular Formula
C24H21N5
Molecular Weight
379.457 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point130ºC (dec.)(lit.)
Boiling Point606.6±40.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point320.7±27.3 °C
Exact Mass379.179688
PSA61.47000
LogP6.38
Vapor Pressure0.0±1.7 mmHg at 25°C
Refractive Index1.641

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed

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 Sudan Red 7B?

The CAS number of Sudan Red 7B is 6368-72-5.

What are the molecular formula and molecular weight of Sudan Red 7B?

Sudan Red 7B has molecular formula C24H21N5 and molecular weight 379.457 g/mol.

Is Sudan Red 7B hazardous?

Sudan Red 7B has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.

What are the upstream and downstream products of Sudan Red 7B?

For Sudan Red 7B, Upstream Products: N-Ethyl-2-naphthylamine, 4-Aminoazobenzene.

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

Last updated:

How to cite: Jingsj. "Sudan Red 7B (CAS 6368-72-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361756-6 (accessed 2026-11-09).

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