3,4-Thiophenedicarboxylic Acid

Modify Date: 2025-09-14 21:06:55

3,4-Thiophenedicarboxylic Acid Structure
3,4-Thiophenedicarboxylic Acid structure
Common Name 3,4-Thiophenedicarboxylic Acid
CAS Number 4282-29-5 Molecular Weight 172.159
Density 1.7±0.1 g/cm3 Boiling Point 405.9±30.0 °C at 760 mmHg
Molecular Formula C6H4O4S Melting Point 227-231ºC
MSDS Chinese USA Flash Point 199.3±24.6 °C

 Names

Name Thiophene-3,4-Dicarboxylic Acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.7±0.1 g/cm3
Boiling Point 405.9±30.0 °C at 760 mmHg
Melting Point 227-231ºC
Molecular Formula C6H4O4S
Molecular Weight 172.159
Flash Point 199.3±24.6 °C
Exact Mass 171.983032
PSA 102.84000
LogP 0.35
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.663

 Safety Information

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases 24/25
RIDADR NONH for all modes of transport
HS Code 2934999090

 Synthetic Route

~92%

3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Crayston, Joe A.; Iraqi, Ahmed; Mallon, Philip; Walton, John C. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1993 , # 9 p. 1589 - 1596

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3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Sice Journal of Organic Chemistry, 1954 , vol. 19, p. 70,72

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3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Uy, Rycel; Yang, Liqiang; Zhou, Huaxing; Price, Samuel C.; You, Wei Macromolecules, 2011 , vol. 44, # 23 p. 9146 - 9154

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3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Crayston, Joe A.; Iraqi, Ahmed; Mallon, Philip; Walton, John C. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1993 , # 9 p. 1589 - 1596

~%

3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Crayston, Joe A.; Iraqi, Ahmed; Mallon, Philip; Walton, John C. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1993 , # 9 p. 1589 - 1596

~%

3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Kornfeld; Jones Journal of Organic Chemistry, 1954 , vol. 19, p. 1671,1677

~%

3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Kornfeld; Jones Journal of Organic Chemistry, 1954 , vol. 19, p. 1671,1677

~%

3,4-Thiophenedicarboxylic Acid Structure

3,4-Thiophenedi...

CAS#:4282-29-5

Literature: Benko, Jan; Vollarova, Olga Collection of Czechoslovak Chemical Communications, 1988 , vol. 53, # 6 p. 1268 - 1273

 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%

 Synonyms

Thiophene-3,4-dicarboxylic acid
T5SJ CVQ DVQ
3,4-Thiophenedicarboxylic Acid
MFCD00067079
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