Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Benzenesulfonic acid,4-[2-(4-hydroxyphenyl)diazenyl]-
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Benzenesulfonic acid,4-[2-(4-hydroxyphenyl)diazenyl]-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

2918-83-4

2918-83-4 structure

2918-83-4 structure

Name: Benzenesulfonic acid,4-[2-(4-hydroxyphenyl)diazenyl]-
Chemical Name: 4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid
CAS Number: 2918-83-4
Molecular Formula: C₁₂H₁₀N₂O₄S
Molecular Weight: 278.28400
Create Date: 2016-01-29 01:36:18
Modify Date: 2025-09-23 23:00:39

Name	4-[2-(4-oxocyclohexa-2,5-dien-1-ylidene)hydrazinyl]benzenesulfonic acid
Synonyms	4'-Hydroxyazobenzene-4-sulphonic acid 4-hydroxyphenylazo-4-benzenesulfonic acid EINECS 220-856-0

Density	1.44g/cm3
Melting Point	270-275 °C
Molecular Formula	C₁₂H₁₀N₂O₄S
Molecular Weight	278.28400
Exact Mass	278.03600
PSA	107.70000
LogP	4.13510
Index of Refraction	1.648

HS Code	2927000090

Precursor 10
121-57-3 108-95-2 69-72-7 495-48-7
305-80-6 99-96-7 104-23-4 1689-82-3
2484-88-0 7664-93-9
DownStream 7
305-80-6 118-75-2 98-67-9 118-79-6
123-30-8 121-57-3 2835-04-3

HS Code	2927000090
Summary	2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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