7-Hydroxy-3,4,8-trimethyl-2H-chromen-2-one
Names
[ CAS No. ]:
91963-11-0
[ Name ]:
7-Hydroxy-3,4,8-trimethyl-2H-chromen-2-one
[Synonym ]:
MFCD00011569
7-hydroxy-3,4,8-trimethyl-chromen-2-one
7-Hydroxy-3,4,8-trimethylcoumarin
3,4,8-trimethylumbelliferone
Chemical & Physical Properties
[ Density]:
1.217g/cm3
[ Boiling Point ]:
378.1ºC at 760mmHg
[ Melting Point ]:
278-280ºC(lit.)
[ Molecular Formula ]:
C12H12O3
[ Molecular Weight ]:
204.22200
[ Flash Point ]:
167ºC
[ Exact Mass ]:
204.07900
[ PSA ]:
50.44000
[ LogP ]:
2.42380
[ Index of Refraction ]:
1.58
Safety Information
[ Hazard Codes ]:
Xi: Irritant;
[ Risk Phrases ]:
36/37/38
[ Safety Phrases ]:
26-37/39
[ HS Code ]:
2932209090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2932209090
[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%