2,3-Dihydro-thieno[3,4-b]-1,4-dioxin-5,7-dicarboxylic acid

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Names

[ CAS No. ]:
18361-03-0

[ Name ]:
2,3-Dihydro-thieno[3,4-b]-1,4-dioxin-5,7-dicarboxylic acid

[Synonym ]:
3,4-Ethylenedioxythiophene-2,5-dicarboxylic Acid
2,5-Dicarboxylic acid-3,4-ethylene dioxythiophene
3,4-ethylenedioxythiophenedicarboxylic acid
Thieno[3,4-B]-1,4-Dioxin-5,7-DicarboxylicAcid,2,3-Dihydro
3,4-ethylenedioxy-2,5-dicarboxythiophene
3,4-ethylenedioxythiophene-2,5-dicarboxyllic acid
2,3-Dihydro-thieno[3,4-b]-p-dioxin-5,7-dicarboxylic acid
2,5-dicarboxy-3,4-ethylenedioxythiophene
3,4-Ethylendioxythiophen-2,5-dicarbonsure
3,4-ethylenedioxythiophene-2,5-dicarboxylic acid
3,4-ETHYLENEDIOXOTHIOPHENE-2,5-DICARBOXYLIC ACID

Chemical & Physical Properties

[ Density]:
1.732 g/cm3

[ Boiling Point ]:
482.6ºC at 760 mmHg

[ Molecular Formula ]:
C8H6O6S

[ Molecular Weight ]:
230.19500

[ Flash Point ]:
245.6ºC

[ Exact Mass ]:
229.98900

[ PSA ]:
121.30000

[ LogP ]:
0.91570

[ Vapour Pressure ]:
4.01E-10mmHg at 25°C

[ Index of Refraction ]:
1.663

MSDS

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Safety Information

[ Hazard Codes ]:
Xi

[ HS Code ]:
2934999090

Synthetic Route

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Precursor & DownStream

Precursor

  • Diethyl 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylate
  • Ethane, 1,1-dichloro-
  • Dimethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
  • Isopropanol
  • Diethyl 2,2'-sulfanediyldiacetate
  • dichloroethane
  • Diethyloxalate
  • Diethyl 3,4-dihydroxy-2,5-thiophenedicarboxylate
  • 3,4-Dihydroxy-2,5-thiophenedicarboxylic acid 2,5-diethyl ester sodium salt

DownStream

  • 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
  • 3,4-Ethylenedioxythiophene

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%