Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate

Modify Date: 2024-01-02 04:16:19

Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate Structure
Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate structure
Common Name Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
CAS Number 1822-66-8 Molecular Weight 260.264
Density 1.4±0.1 g/cm3 Boiling Point 397.7±37.0 °C at 760 mmHg
Molecular Formula C10H12O6S Melting Point 132-135ºC(lit.)
MSDS N/A Flash Point 194.3±26.5 °C

 Names

Name diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.4±0.1 g/cm3
Boiling Point 397.7±37.0 °C at 760 mmHg
Melting Point 132-135ºC(lit.)
Molecular Formula C10H12O6S
Molecular Weight 260.264
Flash Point 194.3±26.5 °C
Exact Mass 260.035461
PSA 121.30000
LogP 4.11
Vapour Pressure 0.0±1.0 mmHg at 25°C
Index of Refraction 1.578

 Safety Information

Hazard Codes T: Toxic;Xi: Irritant;
Risk Phrases 61-20/21-36-36/37/38
Safety Phrases 53-45-36-26
HS Code 2934999090

 Synthetic Route

~78%

Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate Structure

Diethyl 3,4-dih...

CAS#:1822-66-8

Literature: Far Eastern New Century Corporation; Liang, Nai-Yun; Tsai, Hui-Shan; Ke, Ching-Wei; Jseng, Chin-Wan Patent: EP2548875 A1, 2013 ; Location in patent: Paragraph 0074-0082 ;

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Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate Structure

Diethyl 3,4-dih...

CAS#:1822-66-8

Literature: WO2008/106194 A1, ; Page/Page column 7-9 ;

 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

2,5-bis(ethoxycarbonyl)-3,4-dihydroxythiophene
2,5-Bis(ethoxycarbonyl)thiophene-3,4-diol
Diethyl 3,4-dihydroxythiophene-2,5-dicarboxylate
ethyl 3,4-dihydroxy-2,5-thiophene-dicarboxylate
ethyl 3,4-dihydroxythiophene-2,5-dicarboxylate
diethyl 3,4-dihydroxythiphene-2,5-dicarboxylate
Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
2,5-Thiophenedicarboxylic acid, 3,4-dihydroxy-, diethyl ester
ethyl 5-(ethoxycarbonyl)-3,4-dihydroxythiophene-2-carboxylate
3,4-dihydroxy-2,5-thiophenedicarboxylic acid diethyl ester
MFCD03094035
2,5-bis[ethoxy(hydroxy)methylidene]thiolane-3,4-dione
3,4-Dihydroxythiophene-2,5-dicarboxylic acid diethyl ester
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