Direct Red 31

CAS5001-72-9

Direct Red 31 (CAS 5001-72-9, C32H21N5Na2O8S2) is supplied by ChemSigma for research and manufacturing, with specification, analytical methods and batch documentation available on request.

Chemical structure of Direct Red  31
C32H21N5Na2O8S2 · 713.64 g/mol
CAS No.
5001-72-9
Formula
C32H21N5Na2O8S2
Mol. weight
713.64 g/mol

Chemical Specifications

Identifiers

CAS number 5001-72-9
Product name Direct Red 31
Chinese name 直接红31
Synonyms disodium 7,7'-iminobis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate]
Chinese synonyms 直接红31; 直接红 12B; 直接桃红 12B; 直接桃红12B
Molecular formula C32H21N5Na2O8S2
Molecular weight 713.64 g/mol
EC number 225-669-8

Packaging, Storage & Transport

Available pack sizes 5kg, 1kg, 500g, 100g, 50g, 10g

Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.

Frequently Asked Questions

What is the CAS number of Direct Red 31?

The CAS Registry Number of Direct Red 31 is 5001-72-9. Direct Red 31 is also known as disodium 7,7'-iminobis[4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate].

What is the molecular formula and molecular weight of Direct Red 31?

The molecular formula of Direct Red 31 is C32H21N5Na2O8S2, and its molecular weight is 713.64 g/mol.

How can I request a quotation for Direct Red 31?

Send an inquiry for Direct Red 31 (CAS 5001-72-9) with the required quantity, target specification, destination country and any documentation requirements. ChemSigma will confirm availability, packaging, lead time and price.

Request a Quote for Direct Red 31

Tell us the required quantity, target specification, destination country and any documentation requirements. We will confirm availability, packaging, lead time and price.