Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester
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Purity: 98.0%
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1821-20-1

1821-20-1 structure

1821-20-1 structure

Name: 2H-1-Benzopyran-3-carboxylic acid, 4-hydroxy-2-oxo-, ethyl ester
Chemical Name: ethyl 4-hydroxy-2-oxochromene-3-carboxylate
CAS Number: 1821-20-1
Molecular Formula: C₁₂H₁₀O₅
Molecular Weight: 234.20500
Create Date: 2016-02-12 04:53:30
Modify Date: 2024-01-03 06:53:29

Name	ethyl 4-hydroxy-2-oxochromene-3-carboxylate
Synonyms	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

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

HS Code	2932209090

770719-70-5 structure

770719-70-5

~64%

1821-20-1 structure

1821-20-1

Literature: Athanasellis, Giorgos; Melagraki, Georgia; Chatzidakis, Haralambos; Afantitis, Antreas; Detsi, Anastasia; Igglessi-Markopoulou, Olga; Markopoulos, John Synthesis, 2004 , # 11 p. 1775 - 1782

50-78-2 structure

50-78-2

~%

1821-20-1 structure

1821-20-1

Literature: Stefanou, Valentina; Matiadis, Dimitris; Melagraki, Georgia; Afantitis, Antreas; Athanasellis, Giorgos; Igglessi-Markopoulou, Olga; McKee, Vickie; Markopoulos, John Molecules, 2011 , vol. 16, # 1 p. 384 - 402

19725-33-8 structure

19725-33-8

~%

1821-20-1 structure

1821-20-1

Literature: Melagraki, Georgia; Afantitis, Antreas; Igglessi-Markopoulou, Olga; Detsi, Anastasia; Koufaki, Maria; Kontogiorgis, Christos; Hadjipavlou-Litina, Dimitra J. European Journal of Medicinal Chemistry, 2009 , vol. 44, # 7 p. 3020 - 3026

105-53-3 structure

105-53-3

5538-51-2 structure

5538-51-2

~%

1821-20-1 structure

1821-20-1

Literature: Stadlbauer, Wolfgang; Prattes, Susanne; Fiala, Werner Journal of Heterocyclic Chemistry, 1998 , vol. 35, # 3 p. 627 - 636

Precursor 4
770719-70-5 50-78-2 105-53-3 5538-51-2
DownStream 2
1076-38-6 213181-26-1

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