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

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
  • 4-((Cyclohexylamino)methyl)benzoic acid hydrochloride
  • 1-[(2,4-Dichlorophenyl)methyl]-N-(1,1-dimethylethyl)-2-methyl-1H-indole-3-methanamine
  • 3-[4-(4,6-dimethylpyrimidin-2-yl)piperazin-1-yl]-6-(1H-pyrazol-1-yl)pyridazine
  • 2-Methoxy-6-(pyrazol-1-yl)-benzonitrile
  • 1H-3-Benzazepin-7-ol, 8-chloro-2,3,4,5-tetrahydro-5-(3-iodophenyl)-3-methyl-, (S)-
  • (4-Methyl-tetrahydro-furan-2-yl)-methanol
  • N-(1-cyanocyclopentyl)-2-[4-(4-fluorobenzenesulfonyl)-1,4-diazepan-1-yl]acetamide
  • 4,5,6,7-Tetrahydrobenzo[d]isoxazole-3-carbaldehyde
  • tert-Butyl-DL-alanine
  • 4-amino-N-[2-tert-butyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazol-5-yl]-N-ethylbenzenesulfonamide