Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate

Modify Date: 2025-08-26 14:47:32

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate Structure
Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate structure
 Common Name Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate
CAS Number 42933-07-3 Molecular Weight 233.016
Density 1.8±0.1 g/cm3 Boiling Point 285.4±40.0 °C at 760 mmHg
Molecular Formula C7H5BrO4 Melting Point N/A
MSDS N/A Flash Point 126.4±27.3 °C

 Names

Name methyl 5-bromo-6-oxopyran-3-carboxylate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.8±0.1 g/cm3
Boiling Point 285.4±40.0 °C at 760 mmHg
Molecular Formula C7H5BrO4
Molecular Weight 233.016
Flash Point 126.4±27.3 °C
Exact Mass 231.937119
PSA 56.51000
LogP -0.30
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.579
InChIKey CGWCMWNFFICVFC-UHFFFAOYSA-N
SMILES COC(=O)c1coc(=O)c(Br)c1
Storage condition 2-8°C

 Safety Information

Hazard Codes Xi
HS Code 2932209090

 Synthetic Route

5-(Carbomethoxy)-2-pyrone structure

5-(Carbomethoxy...

CAS#:6018-41-3

~83%

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate Structure

Methyl 3-bromo-...

CAS#:42933-07-3

Literature: Ashworth; Bowden; Dembofsky; Levin; Moss; Robinson; Szczur; Virica Organic Process Research and Development, 2003 , vol. 7, # 1 p. 74 - 81
2-Oxo-2H-pyran-5-carboxylic acid structure

2-Oxo-2H-pyran-...

CAS#:500-05-0

~%

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate Structure

Methyl 3-bromo-...

CAS#:42933-07-3

Literature: Ashworth; Bowden; Dembofsky; Levin; Moss; Robinson; Szczur; Virica Organic Process Research and Development, 2003 , vol. 7, # 1 p. 74 - 81
Methanol structure

Methanol

CAS#:67-56-1

~%

Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate Structure

Methyl 3-bromo-...

CAS#:42933-07-3

Literature: v. Pechmann Chemische Berichte, 1884 , vol. 17, p. 2399 Chemische Berichte, 1885 , vol. 18, p. 318

 Customs

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

 Synonyms

methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate
3-bromo-coumalic acid methyl ester
5-Brom-6-oxo-6H-pyran-3-carbonsaeure-methylester
3-bromo methyl coumalate
methyl 3-bromocoumalate
methyl 3-bromo-2-oxopyran-5-carboxylate
5-bromo-6-oxo-6H-pyran-3-carboxylic acid methyl ester
3-Brom-cumalin-carbonsaeure-(5)-methylester
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Chemsrc provides CAS#:42933-07-3 MSDS, density, melting point, boiling point, structure, etc. Its name is Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate>> amp version: Methyl 3-bromo-2-oxo-2H-pyran-5-carboxylate

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