Benzenesulfonic acid,4-[2-(4-hydroxyphenyl)diazenyl]-

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Names

[ CAS No. ]:
2918-83-4

[ Name ]:
Benzenesulfonic acid,4-[2-(4-hydroxyphenyl)diazenyl]-

[Synonym ]:
4'-Hydroxyazobenzene-4-sulphonic acid
4-hydroxyphenylazo-4-benzenesulfonic acid
EINECS 220-856-0

Chemical & Physical Properties

[ 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

Safety Information

[ HS Code ]:
2927000090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Sulfanilic acid
  • Phenol
  • Salicylic acid
  • fentoxan
  • P-DIAZOBENZENESULFONIC ACID
  • 4-Hydroxybenzoic acid
  • 4'-Aminoazobenzene-4-sulphonic acid
  • p-(Phenylazo)phenol
  • Benzenesulfonic acid,4-(2-phenyldiazenyl)-
  • Sulfuric acid

DownStream

  • P-DIAZOBENZENESULFONIC ACID
  • CHLORANIL
  • 4-phenolsulfonic acid
  • 2,4,6-Tribromophenol
  • 4-Aminophenol
  • Sulfanilic acid
  • 4-Hydroxy-3-sulfoaniline

Customs

[ 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%