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Shandong Wuyang Chemical Co.,Ltd.

55 YRS

Shandong, China

CNY 32 Million

63936 m²

100-500 people

Main Products: Direct Red 23 / Disodium 7,7'-(Carbonyldiimino)bis(4-Hydroxynaphthalene-2-Sulphonate) / Direct Yellow 96 / Direct Red 31 / Direct Blue 86 / J Acid / Rhoduline Acid / 2-Aminonaphthalene-1-Sulfonic Acid / 7-Anilino-4-Hydroxy-2-Naphthalenesulfonic Acid / P-Anisidine-3-Sulfonic Acid

Shandong, China

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Disodium,(3E)-4-Oxo-7-[[(6E)-5-Oxo-6-(Phenylhydrazinylidene)-7-Sulfonatonaphthalen-2-Yl]Amino]-3-(Phenylhydrazinylidene)Naphthalene-2-Sulfonate###Direct Red 31

Disodium,(3E)-4-Oxo-7-[[(6E)-5-Oxo-6-(Phenylhydrazinylidene)-7-Sulfonatonaphthalen-2-Yl]Amino]-3-(Phenylhydrazinylidene)Naphthalene-2-Sulfonate###Direct Red 31 / CAS 5001-72-9

OVERVIEW

Packaging

25 KG/Iron Drum

Lead Time

14-30 days

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DESCRIPTION

Direct red 31

Product Name:	Direct red 31
CAS RN：	5001-72-9
Alias:	Direct pink 12B
explain:	It is mainly used for dyeing cellulose fibers such as cotton and viscose. It can also be used for dyeing silk, wool, paper and pulp.
packing:	25kg or 40kg iron drum.

Typical Properties

Direct peach red is the main red dye, which is widely used in the dyeing and printing of cotton and viscose fabrics, as well as silk and viscose interwoven fabrics. It has good migration and levelness, and high dye uptake. It can also be used for direct printing of silkworm silk, vinylon fabric and silk fabric. When it is used for blending cotton, viscose and other fibers, the color of silk is slightly lighter, wool and nylon can be dyed, diacetate fiber is stained, and polyester and acrylic fiber are slightly stained.

CAS No.

5001-72-9

Formula

C32H21N5Na2O8S2

Molecular Mass

713.64700

Exact Mass

713.06300

PSA

233.09000

Logp

10.02140

IUPAC

disodium;4-hydroxy-7-[(5-hydroxy-6-phenyldiazenyl-7-sulfonatonaphthalen-2-yl)amino]-3-phenyldiazenylnaphthalene-2-sulfonate

SMILES

C1=CC=C(C=C1)N=NC2=C(C=C3C=C(C=CC3=C2O)NC4=CC5=CC(=C(C(=C5C=C4)O)N=NC6=CC=CC=C6)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+]

Matter Classification

organic

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