Pigment Red 64

颜料红64

Also known as: D & C Red no. 31, Pigment Red 64:1, Brilliant Lake Red R Calcium Salt, CI 15800, CI 15800:1, RED 31, Japan Red 219, AKA219, calcium bis[3-hydroxy-4-(phenylazo)-2-naphthoate], 3-hydroxy-4-(phenylazo)-2-naphthalenecarboxylic acid calcium salt (2:1), Brilliant Lake Red R, Brilliant Scarlet G, Symuler Brilliant Scarlet G, Topaz Toner R5

Pigment Red 64 (CAS 6371-76-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C23H23NO4S2 and a molecular weight of 441.56300 g/mol. It is also known as D & C Red no. 31, Pigment Red 64:1 and Brilliant Lake Red R Calcium Salt. Key properties include a boiling point of 597.5ºC at 760 mmHg, a density of 1.3g/cm3 and a flash point of 315.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6371-76-2
Jingsj CID
J-912-2
Molecular Formula
C23H23NO4S2
Chinese Name
颜料红64
Molecular Weight
441.56300 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point597.5ºC at 760 mmHg
Density1.3g/cm3
Flash Point315.2ºC

Frequently Asked Questions

What is the CAS number of Pigment Red 64?

The CAS number of Pigment Red 64 is 6371-76-2.

What are the molecular formula and molecular weight of Pigment Red 64?

Pigment Red 64 has molecular formula C23H23NO4S2 and molecular weight 441.56300 g/mol.

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

Last updated:

How to cite: Jingsj. "Pigment Red 64 (CAS 6371-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-912-2 (accessed 2026-10-23).

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