2H-1-Benzopyran-2-one,3,4-dichloro-

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Names

[ CAS No. ]:
5117-56-6

[ Name ]:
2H-1-Benzopyran-2-one,3,4-dichloro-

[Synonym ]:
3,4-Dichlor-cumarin
3,4-dichloro-2h-chromen-2-one
3,4-dichlorocoumarin
3,4-dichloro-chromen-2-one
3,4-Dichlor-coumarin

Chemical & Physical Properties

[ Density]:
1.53g/cm3

[ Boiling Point ]:
330.7ºC at 760 mmHg

[ Molecular Formula ]:
C9H4Cl2O2

[ Molecular Weight ]:
215.03300

[ Flash Point ]:
151.2ºC

[ Exact Mass ]:
213.95900

[ PSA ]:
30.21000

[ LogP ]:
3.09980

[ Index of Refraction ]:
1.627

Safety Information

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3-Chlor-4-hydroxy-2-oxo-2H[1]benzopyran
  • Hexachloropropene
  • Phenol
  • Aluminium chloride
  • Carbon disulphide

DownStream

  • 2H-1-Benzopyran-2-one, 3-chloro-4- (1-piperidinyl)-

Customs

[ HS Code ]: 2932209090

[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Related Compounds

  • 2H-1-Benzopyran-2-one,3,4-dichloro-6,7-dimethyl
  • 2H-1-BENZOPYRAN-2-ONE, 3,4-DIHYDRO-4-(4-METHYLPHENYL)-
  • 2H-1-Benzopyran-2-one,3-(4-aminophenyl)-
  • 2H-1-BENZOPYRAN-2-ONE, 3,4-DIHYDRO-6,8-DIMETHYL-4-PHENYL-
  • 2H-1-Benzopyran-2-one,3,4-dihydro-7-hydroxy-4-phenyl-
  • 2H-1-Benzopyran-2-one, 3,4-dihydro-3,4,7,8-tetrahydroxy- (9CI)