Citrus Red No. 2

柑桔红2

Also known as: Citrus Red 2, Solvent Red 80, C.I. 12156, C.I. Solvent Red 80, 1-[(2,5-Dimethoxyphenyl)diazenyl]-2-naphthol, 1-(2,5-Dimethoxyphenylazo)-2-naphthol, 2-Naphthalenol, 1-[2-(2,5-dimethoxyphenyl)diazenyl]-

Citrus Red No. 2 (CAS 6358-53-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H16N2O3 and a molecular weight of 308.331 g/mol. It is also known as Citrus Red 2, Solvent Red 80 and C.I. 12156. Key properties include a melting point of 155-157ºC, a boiling point of 536.9±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 278.5±30.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6358-53-8
Jingsj CID
J-1308845-9
Molecular Formula
C18H16N2O3
Chinese Name
柑桔红2
Molecular Weight
308.331 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point155-157ºC
Boiling Point536.9±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point278.5±30.1 °C

GHS Safety & Compliance

Health HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of Citrus Red No. 2?

The CAS number of Citrus Red No. 2 is 6358-53-8.

What are the molecular formula and molecular weight of Citrus Red No. 2?

Citrus Red No. 2 has molecular formula C18H16N2O3 and molecular weight 308.331 g/mol.

Is Citrus Red No. 2 hazardous?

Citrus Red No. 2 has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Citrus Red No. 2 (CAS 6358-53-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308845-9 (accessed 2026-10-25).

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