2-(5-oxo-2-furylidene)acetic acid

Modify Date: 2025-08-25 11:08:12

2-(5-oxo-2-furylidene)acetic acid Structure
2-(5-oxo-2-furylidene)acetic acid structure
Common Name 2-(5-oxo-2-furylidene)acetic acid
CAS Number 3374-46-7 Molecular Weight 140.09400
Density 1.721g/cm3 Boiling Point 336.1ºC at 760mmHg
Molecular Formula C6H4O4 Melting Point N/A
MSDS N/A Flash Point 151.4ºC

 Names

Name cis-4-carboxymethylenebut-2-en-4-olide
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.721g/cm3
Boiling Point 336.1ºC at 760mmHg
Molecular Formula C6H4O4
Molecular Weight 140.09400
Flash Point 151.4ºC
Exact Mass 140.01100
PSA 63.60000
LogP 0.06790

 Safety Information

HS Code 2932190090

 Synthetic Route

~75%

2-(5-oxo-2-furylidene)acetic acid Structure

2-(5-oxo-2-fury...

CAS#:3374-46-7

Literature: Funabiki, Takuzo; Sugio, Daisuke; Inui, Nobuhiko; Maeda, Matsutaka; Hitomi, Yutaka Chemical Communications, 2002 , # 5 p. 412 - 413

~%

2-(5-oxo-2-furylidene)acetic acid Structure

2-(5-oxo-2-fury...

CAS#:3374-46-7

Literature: Massy-Westropp, Ralph; Price, Martyn F. Australian Journal of Chemistry, 1980 , vol. 33, # 2 p. 333 - 341

~%

2-(5-oxo-2-furylidene)acetic acid Structure

2-(5-oxo-2-fury...

CAS#:3374-46-7

Literature: Massy-Westropp, Ralph; Price, Martyn F. Australian Journal of Chemistry, 1980 , vol. 33, # 2 p. 333 - 341

 Precursor & DownStream

Precursor  2

DownStream  0

 Customs

HS Code 2932190090
Summary 2932190090 other compounds containing an unfused furan ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

 Synonyms

trans-dienelactone
cis-dienelactone
2-(5-oxo-2-furylidene)acetic acid
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