4,5-Dihydroxy-2,7-naphthalenedisulfonic acid

Names

[ CAS No. ]:
148-25-4

[ Name ]:
4,5-Dihydroxy-2,7-naphthalenedisulfonic acid

[Synonym ]:
4,5-Dihydroxy-2,7-naphthalenedisulfonic acid
2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-
4,5-Dihydroxynaphthalene-2,7-disulfonic acid
MFCD00003968
EINECS 205-712-7
1,8-Dihydroxynaphthylene-3,6-Disulfonic Acid
Chromotropic acid

Chemical & Physical Properties

[ Density]:
1.9±0.1 g/cm3

[ Molecular Formula ]:
C₁₀H₈O₈S₂

[ Molecular Weight ]:
320.296

[ Exact Mass ]:
319.966064

[ PSA ]:
165.96000

[ LogP ]:
-3.86

[ Index of Refraction ]:
1.757

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
R22:Harmful if swallowed.

[ Safety Phrases ]:
S22-S24/25

[ RIDADR ]:
UN3288

[ WGK Germany ]:
3

[ RTECS ]:
TE6130000

[ Packaging Group ]:
III

[ Hazard Class ]:
6.1

[ 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%