2H-1-Benzopyran-2-one,5-hydroxy-4-methyl-

Names

[ Name ]:
2H-1-Benzopyran-2-one,5-hydroxy-4-methyl-

[Synonym ]:
2H-1-Benzopyran-2-one,5-hydroxy-4-methyl
5-hydroxy-4-methyl-2H-1-benzopyran-2-one
5-hydroxy-4-methyl-chromen-2-one
5-Hydroxy-4-methylcoumarin
4-Methyl-5-hydroxycumarin
5-Hydroxy-4-methyl-cumarin

Chemical & Physical Properties

[ Density]:
1.319g/cm3

[ Boiling Point ]:
357ºC at 760mmHg

[ Molecular Formula ]:
C₁₀H₈O₃

[ Molecular Weight ]:
176.16900

[ Flash Point ]:
163.6ºC

[ Exact Mass ]:
176.04700

[ PSA ]:
50.44000

[ LogP ]:
1.80700

[ Vapour Pressure ]:
1.36E-05mmHg at 25°C

[ Index of Refraction ]:
1.611

Safety Information

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail 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%