Thieno[3,2-b]thiophene-2-carboxylic acid

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Names

[ CAS No. ]:
1723-27-9

[ Name ]:
Thieno[3,2-b]thiophene-2-carboxylic acid

[Synonym ]:
Thieno[3,2-b]thiophen-2-carbonsaeure
Thieno[3,2-b]thiophene-2-carboxylic acid
thiopheno[3,2-b]thiophene-2-carboxylic acid
THI073
MFCD00115174
2-carboxy-thieno[3,2-b]thiophene

Chemical & Physical Properties

[ Density]:
1.6±0.1 g/cm3

[ Boiling Point ]:
386.7±22.0 °C at 760 mmHg

[ Melting Point ]:
225-227ºC

[ Molecular Formula ]:
C7H4O2S2

[ Molecular Weight ]:
184.236

[ Flash Point ]:
187.6±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

[ Storage condition ]:
2-8°C

MSDS

Click to get detail MSDS

Safety Information

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R36/37/38

[ Safety Phrases ]:
S26-S37/39

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Ethyl thieno[3,2-b]thiophene-2-carboxylate
  • 3-Bromo-2-thiophenecarbaldehyde
  • 2-Thiophenecarboxaldehyde
  • 2-sulfanylidene-5-(thiophen-2-ylmethylidene)thiazolidin-4-one
  • 1-thieno[3,2-b]thiophen-2-yl-ethanone
  • Thieno3,2-bthiophene
  • N,N-Dimethylaniline

DownStream

  • 2,3,5-TRIBROMOTHIENO[3,2-B]THIOPHENE
  • METHYL THIENO[3,2-B]THIOPHENE-2-CARBOXYLATE
  • PERBROMOTHIENO[3,2-B]THIOPHENE
  • Thieno3,2-bthiophene
  • 2,5-Dibromothieno[3,2-b]thiophene

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

  • 6-bromothieno[3,2-b]thiophene-2-carboxylic acid
  • 5-Bromothieno[3,2-b]thiophene-2-carboxylic acid
  • 3-methylthieno[3,2-b]thiophene-2-carboxylic acid
  • 3-Undecylthieno[3,2-b]thiophene-2-carboxylic acid
  • Thieno[3,2-b]thiophene-2-carboxylic acid,ethyl ester
  • Thieno[3,2-b]Thiophene-2-carboxylic Acid,Methyl Ester
  • N-(1-cyano-1-cyclopropylethyl)-2-{2-methyl-5H,6H,7H,8H-pyrido[3,4-d]pyrimidin-7-yl}acetamide
  • Methyl2-isopropylthiazole-5-carboxylate
  • 5-Methyl-3-nitrothiophene-2-carboxylic acid
  • N-(1-cyano-1-methylpropyl)-4-(difluoromethoxy)-3-methoxybenzamide
  • N-[(3-bromophenyl)(cyano)methyl]cyclopentanecarboxamide
  • 4-Methoxy-6-methylpyridine-3-carbaldehyde
  • (1H-inden-3-yl)boronic acid
  • 4-Hydrazinyl-1-methyl-1H-pyrazole
  • 4-Bromo-3-methoxy-2-nitrothiophene
  • methyl 2-ethoxy-4-pyrrolidin-1-ylsulfonyl-benzoate
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