4,7-dihydroxynaphthalene-2-sulphonic acid

Names

[ Name ]:
4,7-dihydroxynaphthalene-2-sulphonic acid

[Synonym ]:
4,7-dihydroxy-naphthalene-2-sulfonic acid
2-Naphthalenesulfonicacid,4,7-dihydroxy
1,6-Dihydroxynaphthalene-3-sulfonicacid
2,5-Dihydroxy-naphthalin-7-sulfonsaeure
EINECS 228-759-5
4,7-Dihydroxynaphthalene-2-sulphonic acid
4,7-Dihydroxy-naphthalin-2-sulfonsaeure
Dioxy-J acid
3,8-Dihydroxy-6-naphthalenesulfonic acid

Chemical & Physical Properties

[ Density]:
1.677g/cm3

[ Molecular Formula ]:
C₁₀H₈O₅S

[ Molecular Weight ]:
240.23300

[ Exact Mass ]:
240.00900

[ PSA ]:
103.21000

[ LogP ]:
2.57850

[ Index of Refraction ]:
1.739

Safety Information

[ HS Code ]:
2908999090

Synthetic Route

Click to get detail synthetic route

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%