Pigment Red 31

颜料红 31

Also known as: C.I. 12360, 3-Hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]-N-(3-nitrophenyl)-2-naphthalenecarboxamide, 4-[[5-(Anilino)carbonyl-2-methoxyphenyl]azo]-3-hydroxy-N-(3-nitrophenyl)naphthalene-2-carboxamide, Red Violet, (4Z)-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene]-N-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide

Pigment Red 31 (CAS 6448-96-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C31H23N5O6 and a molecular weight of 561.54400 g/mol. It is also known as C.I. 12360, 3-Hydroxy-4-[[2-methoxy-5-[(phenylamino)carbonyl]phenyl]azo]-N-(3-nitrophenyl)-2-naphthalenecarboxamide and 4-[[5-(Anilino)carbonyl-2-methoxyphenyl]azo]-3-hydroxy-N-(3-nitrophenyl)naphthalene-2-carboxamide. Key properties include a boiling point of 703.3ºC at 760 mmHg, a density of 1.37 and a flash point of 379.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6448-96-0
Jingsj CID: J-1171108-9
Molecular Formula: C₃₁H₂₃N₅O₆
Chinese Name: 颜料红 31
Molecular Weight: 561.54400 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	703.3ºC at 760 mmHg
Density	1.37
Flash Point	379.1ºC

Frequently Asked Questions

What is the CAS number of Pigment Red 31?

The CAS number of Pigment Red 31 is 6448-96-0.

What are the molecular formula and molecular weight of Pigment Red 31?

Pigment Red 31 has molecular formula C31H23N5O6 and molecular weight 561.54400 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Pigment Red 31 (CAS 6448-96-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1171108-9 (accessed 2026-10-25).

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