21542-82-5

21542-82-5 structure

Name: 2-Hydroxy-5-[(4-sulfophenyl)diazenyl]benzoic acid
Chemical Name: 2-Hydroxy-5-[(4-sulfophenyl)diazenyl]benzoic acid
CAS Number: 21542-82-5
Molecular Formula: C₁₃H₁₀N₂O₆S
Molecular Weight: 322.29300
Create Date: 2018-12-24 13:23:51
Modify Date: 2025-08-25 12:06:22

Name	2-Hydroxy-5-[(4-sulfophenyl)diazenyl]benzoic acid
Synonyms	Benzoic acid, 2-hydroxy-5-[2-(4-sulfophenyl)diazenyl]- Salicylic acid, 5-(4-sulfophenylazo)-

Density	1.58g/cm3
Molecular Formula	C₁₃H₁₀N₂O₆S
Molecular Weight	322.29300
Exact Mass	322.02600
PSA	141.51000
LogP	2.00490
Index of Refraction	1.675

HS Code	2927000090

305-80-6

69-72-7

21542-82-5

Literature: Griess Chemische Berichte, 1878 , vol. 11, p. 2197,2198 Chemische Berichte, 1881 , vol. 14, p. 2036

7664-93-9

3147-53-3

21542-82-5

Literature: Limpricht Justus Liebigs Annalen der Chemie, 1891 , vol. 263, p. 234 Full Text Show Details Stebbins Chemische Berichte, 1880 , vol. 13, p. 716

Precursor 4
305-80-6 69-72-7 7664-93-9 3147-53-3
DownStream 2
89-57-6 121-57-3

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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