Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 7-hydroxynaphthalene-1-sulphonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

132-57-0

132-57-0 structure

132-57-0 structure

Name: 7-hydroxynaphthalene-1-sulphonic acid
Chemical Name: 7-hydroxynaphthalene-1-sulfonic acid
CAS Number: 132-57-0
Molecular Formula: C₁₀H₈O₄S
Molecular Weight: 224.23300
Create Date: 2017-03-14 10:08:03
Modify Date: 2025-09-05 18:29:58

Name	7-hydroxynaphthalene-1-sulfonic acid
Synonyms	2-naphthol-8-sulfonate 7-hydroxy-naphthalene-1-sulfonic acid 7-Hydroxynaphthalene-1-sulphonic acid 2-naphthol-8-sulfonic acid 2-hydroxynaphthalene-8-sulphonic acid Naphthol-(2)-sulfonsaeure-(8) Bayer's Acid 7-Hydroxy-naphthalin-1-sulfonsaeure Croceic acid EINECS 205-066-6

Density	1.549g/cm3
Molecular Formula	C₁₀H₈O₄S
Molecular Weight	224.23300
Exact Mass	224.01400
PSA	82.98000
LogP	2.87290
Index of Refraction	1.703

HS Code	2908999090

Precursor 6
135-19-3 86-60-2 7664-93-9 567-47-5
110295-86-8 86-64-6
DownStream 8
86-60-2 89-86-1 575-38-2 93-01-6
135-19-3 7664-93-9 118-32-1 3900-64-9

HS Code	2908999090
Summary	2908999090 halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

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