4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID

Modify Date: 2025-09-16 17:00:41

4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID Structure
4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID structure
 Common Name 4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID
CAS Number 70685-06-2 Molecular Weight 218.65700
Density 1.457 g/cm3 Boiling Point 435.4ºC at 760 mmHg
Molecular Formula C8H7ClO3S Melting Point 119-120ºC
MSDS N/A Flash Point 217.1ºC

 Names

Name 4-(5-chlorothiophen-2-yl)-4-oxobutanoic acid

 Chemical & Physical Properties

Density 1.457 g/cm3
Boiling Point 435.4ºC at 760 mmHg
Melting Point 119-120ºC
Molecular Formula C8H7ClO3S
Molecular Weight 218.65700
Flash Point 217.1ºC
Exact Mass 217.98000
PSA 82.61000
LogP 2.44900

 Safety Information

HS Code 2934999090

 Synthetic Route

2-Chlorothiophene structure

2-Chlorothiophene

CAS#:96-43-5

Succinic anhydride structure

Succinic anhydride

CAS#:108-30-5

~95%

1-[3-(5-chloro-2-thenoyl)propionyl]-L-proline structure

1-[3-(5-chloro-...

CAS#:80885-91-2

4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID Structure

4-(5-CHLORO-2-T...

CAS#:70685-06-2

Literature: American Cyanamid Company Patent: US4299769 A1, 1981 ; US 4299769 A
2-Chlorothiophene structure

2-Chlorothiophene

CAS#:96-43-5

Succinic anhydride structure

Succinic anhydride

CAS#:108-30-5

~%

4-(5-CHLORO-2-THIENYL)-4-OXOBUTYRIC ACID Structure

4-(5-CHLORO-2-T...

CAS#:70685-06-2

Literature: Buu-Hoi et al. Recueil des Travaux Chimiques des Pays-Bas, 1950 , vol. 69, p. 1083,1103

 Customs

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%
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