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7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid)

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Origin: China

Cas No: 134-47-4

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

Property

CAS No.: 134-47-4 Formula: C21H16N2O9S2 Molecular Weight: 504.49000

Basic Info

Chemical Name	7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid)
Synonyms	6,6'-Ureylene-bis(1-naphthol-3-sulfonic acid);
CAS No.	134-47-4
Molecular Formula	C21H16N2O9S2
Molecular Weight	504.49000
PSA	207.09000
LogP	5.84920

Properties

Appearance & Physical State	dry grey-white powder
Density	1.798 g/cm3
Melting Point	130-132ºC
Refractive Index	1.822

Safety Info

Safety Statements	S22; S24/25
HS Code	2922210000
WGK Germany	3

Synthesis Route

bis(trichloromethyl) carbonate+7-amino-4-hydroxy-2-naphthalenesulfonic acid→7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid)
phosgene+7-amino-4-hydroxy-2-naphthalenesulfonic acid→7,7'-(Carbonylbis(azanediyl))bis(4-hydroxynaphthalene-2-sulfonic acid)

Precursor

7-amino-4-hydroxy-2-naphthalenesulfonic acid
phosgene
bis(trichloromethyl) carbonate

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