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Details for China J Acid Urea Disodium Salt

J Acid Urea Disodium Salt 20324-87-2

Category :


J Acid Urea Disodium Salt
CAS NO : 20324-87-2
EC NO : 243-735-4
MF : C21H14N2Na2O9S2
MW : 548.4534
Specification : Content≥85%
Product description :

Basic information
CAS: 20324-87-2
Molecular formula: C21H16N2O9S2
Molecular weight: 548.45
Product name: 7,7'-(carbonyldiimino)bis[4-hydroxy-2-naphthalenesulfonic acid disodium salt;sodium 6,6'-(1,3-ureylene)bis(1,1'-naphthol)-3,3'-sulfonate
Properties: light grey paste. Soluble in water, easily soluble in alkaline solutions.
Quality index:
Appearance: grey white or reddish brown uniform powder
Assay: ≥70%
Free J acid: ≤1.5%
Insoluble matter: ≤0.2%
Uses: As intermediate for azo dyes such as direct orange S[1] and direct fast scarlet 4BS[2], and etc.

Synonyms : 2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-, sodium salt (1:2);2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-, disodium salt;Disodium 7,7'-(carbonyldiimino)bis(4-hydroxynaphthalene-2-sulphonate);disodium 4-hydroxy-7-{[(5-hydroxy-7-sulfonatonaphthalen-2-yl)carbamoyl]amino}naphthalene-2-sulfonate;7,7'-Ureylene-bis-(4-hydroxynaphthalene-2-sulfonic acid)disodium salt;J Acid Urea Disodium Salt;
Molecular Structure : J Acid Urea Disodium Salt 20324-87-2