7-hydroxynaphthalene-1-sulphonic acid
Names
[ CAS No. ]:
132-57-0
[ Name ]:
7-hydroxynaphthalene-1-sulphonic acid
[Synonym ]:
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
Chemical & Physical Properties
[ 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
Safety Information
[ HS Code ]:
2908999090
Precursor & DownStream
Precursor
DownStream
Customs
[ 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%