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7-hydroxynaphthalene-1-sulfonic acid

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Origin: China

Cas No: 132-57-0

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.: 132-57-0 Formula: C10H8O4S Molecular Weight: 224.23300

Basic Info

Chemical Name	7-hydroxynaphthalene-1-sulfonic acid
Synonyms	Naphthol-(2)-sulfonsaeure-(8); 7-Hydroxy-naphthalin-1-sulfonsaeure; 2-naphthol-8-sulfonate; 1-Naphthalenesulfonic acid, 7-hydroxy-; EINECS 205-066-6; 2-naphthol-8-sulfonic acid; 7-Hydroxynaphthalene-1-sulphonic acid; 2-hydroxynaphthalene-8-sulphonic acid; Bayer's Acid; Croceic acid; 7-hydroxy-naphthalene-1-sulfonic acid;
CAS No.	132-57-0
Molecular Formula	C10H8O4S
Molecular Weight	224.23300
PSA	82.98000
LogP	2.87290

Properties

Density	1.549g/cm3
Refractive Index	1.703

Safety Info

HS Code	2908999090

Synthesis Route

2-naphthol→7-hydroxynaphthalene-1-sulfonic acid
2-naphthol→7-hydroxynaphthalene-1-sulfonic acid+6-hydroxynaphthalene-2-sulfonic acid
7-aminonaphthalene-1-sulfonic acid→7-hydroxynaphthalene-1-sulfonic acid+6-hydroxynaphthalene-2-sulfonic acid

Precursor

2-naphthol
Sulfuric acid
8-sulfonato-2-naphthalenediazonium zwitterion
7-aminonaphthalene-1-sulfonic acid

Downstream Product

2-naphthol
6-hydroxynaphthalene-2-sulfonic acid
7-aminonaphthalene-1-sulfonic acid
2,4-Dihydroxybenzoic acid

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