2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester

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Names

[ CAS No. ]:
1821-20-1

[ Name ]:
2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester

[Synonym ]:
ethyl 4-hydroxy-2-oxo-2H-chromene-3-carboxylate
3-ethoxycarbonyl-4-hydroxycoumarin
4-hydroxy-2-oxo-2H-chromene-3-carboxylic acid ethyl ester
3-carbethoxy-4-hydroxy-coumarin

Chemical & Physical Properties

[ Density]:
1.41g/cm3

[ Boiling Point ]:
370.9ºC at 760 mmHg

[ Molecular Formula ]:
C12H10O5

[ Molecular Weight ]:
234.20500

[ Flash Point ]:
144.2ºC

[ Exact Mass ]:
234.05300

[ PSA ]:
76.74000

[ LogP ]:
1.67530

[ Vapour Pressure ]:
3.71E-06mmHg at 25°C

[ Index of Refraction ]:
1.603

Safety Information

[ HS Code ]:
2932209090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • ethyl [(2-acetoxyphenyl)hydroxymethylidene]ethoxycarbonylacetate
  • Aspirin
  • Diethyl malonate
  • Acetylsalicyloyl chloride

DownStream

  • 4-Hydroxycoumarin
  • ethyl 4-chloro-2-oxo-2H-chromene-3-carboxylate

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

  • tert-Butyl 5-formyl-2-methoxynicotinate
  • tert-butyl N-[4-hydroxy-2-(1H-1,2,4-triazol-1-yl)cyclohexyl]carbamate
  • 3-Fluoro-4-[(4-fluorophenyl)methoxy]pyrrolidine
  • 3-(3-Aminopiperidin-3-yl)thian-3-ol
  • 3-Fluoro-4-{[3-(trifluoromethyl)phenyl]methoxy}pyrrolidine
  • 3,3-Difluoro-3-(2-fluoro-4-nitrophenyl)propan-1-amine
  • tert-butyl N-[4-hydroxy-2-(4-methyl-1H-pyrazol-1-yl)cyclohexyl]carbamate
  • 3-(2-Bromoethenyl)-2-methylpyridine
  • 4-[(4-Fluoropyrrolidin-3-yl)oxy]-2,6-dimethylpyrimidine
  • 5-Bromo-2-[(4-fluoropyrrolidin-3-yl)oxy]pyrimidine
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