Thieno[2,3-b]thiophene-2-carboxylicacid

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Names

[ CAS No. ]:
14756-75-3

[ Name ]:
Thieno[2,3-b]thiophene-2-carboxylicacid

[Synonym ]:
Thieno[2,3-b]thiophene-2-carboxylic acid
Thieno[2,3-b]thiophene-2-carboxylicacid
thieno[2,3-b]thiophene-5-carboxylic acid

Chemical & Physical Properties

[ Density]:
1.6±0.1 g/cm3

[ Boiling Point ]:
389.5±22.0 °C at 760 mmHg

[ Melting Point ]:
236ºC

[ Molecular Formula ]:
C7H4O2S2

[ Molecular Weight ]:
184.236

[ Flash Point ]:
189.4±22.3 °C

[ Exact Mass ]:
183.965271

[ PSA ]:
93.78000

[ LogP ]:
4.91

[ Vapour Pressure ]:
0.0±0.9 mmHg at 25°C

[ Index of Refraction ]:
1.770

Safety Information

[ Hazard Codes ]:
Xi

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Methyl thieno[2,3-b]thiophene-2-carboxylate

DownStream

  • Methyl thieno[2,3-b]thiophene-2-carboxylate

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%

Related Compounds

  • Thieno[2,3-b]thiophene-2,5-dicarboxaldehyde
  • Thieno[2,3-b]thiophene-2,5-dicarboxylic acid, 3,4-dimethyl-, 2-(1,1-dimethylethyl) 5-ethyl ester
  • Thieno[2,3-b]thiophene-2-carboxylic acid, 3,4-diamino-5-cyano-, ethyl ester (en)
  • 3,4-Diaminothieno[2,3-b]thiophene-2,5-dicarbonitrile
  • thieno[2,3-b]thiophene-2-carboxaldehyde ethylene glycol acetal
  • Methyl thieno[2,3-b]thiophene-2-carboxylate
  • 3-{[(1-Ethylcyclopropyl)methyl]amino}-2,2-difluoropropanoic acid
  • 3-(2,4-Dimethylthiophen-3-yl)-2,2-difluoropropanoic acid
  • 10-Oxa-3-thia-13-azadispiro[5.0.5^{7}.3^{6}]pentadecan-14-one
  • 2-(ethanesulfonyl)-N-methyl-5-(propan-2-yl)cyclohexan-1-amine
  • 2,2-Difluoro-3-[(2-hydroxypentan-3-yl)amino]propanoic acid
  • 3-[(1-Cyclopropylpropyl)amino]-2,2-difluoropropanoic acid
  • 2,2-Difluoro-3-[(4-methyl-1,3-thiazol-2-yl)sulfanyl]propanoic acid
  • 4-(Butan-2-yl)-4-methyl-8-oxa-1-azaspiro[4.5]decan-2-one
  • 2-Methyl-8-oxa-11-azadispiro[3.0.5^{5}.3^{4}]tridecan-12-one
  • 1-Methyl-9-oxa-12-azadispiro[4.0.5^{6}.3^{5}]tetradecan-13-one
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