Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',3',6',7'-tetrahydroxy-

Names

[ CAS No. ]:
2320-44-7

[ Name ]:
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,2',3',6',7'-tetrahydroxy-

[Synonym ]:
Hhqnph
2-Hydroxyhydroquinonephthalein
ortho-Hydroxyhydroquinonephthalein

Chemical & Physical Properties

[ Density]:
1.81g/cm3

[ Boiling Point ]:
740.7ºC at 760 mmHg

[ Molecular Formula ]:
C₂₀H₁₂O₇

[ Molecular Weight ]:
364.30500

[ Flash Point ]:
274.9ºC

[ Exact Mass ]:
364.05800

[ PSA ]:
116.45000

[ LogP ]:
3.07700

[ Vapour Pressure ]:
1.1E-22mmHg at 25°C

[ Index of Refraction ]:
1.865

Safety Information

[ HS Code ]:
2932999099

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ HS Code ]: 2932999099

[ Summary ]:
2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%