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
  • 2-Chloro-3-((2-(trimethylsilyl)ethoxy)methyl)-3H-imidazo[4,5-b]pyridine
  • 2-(2-Bromo-3-nitrophenyl)butanoic acid
  • tert-butyl N-{2-[2-(aminooxy)propan-2-yl]-5-(trifluoromethyl)phenyl}carbamate
  • Methyl 2-amino-2-[5-(methoxymethyl)furan-2-yl]acetate
  • (2R)-2-(2,3,4-trimethoxyphenyl)oxirane
  • 3-(4,5,6,7-Tetrahydro-1-benzothiophen-2-yl)propane-1-thiol
  • (2R)-2-amino-2-(1-ethenyl-1H-pyrazol-4-yl)ethan-1-ol
  • [3,3-Difluoro-1-(3-fluoro-5-methylphenyl)cyclobutyl]methanamine
  • 4-Amino-4-[(methylsulfanyl)methyl]cyclohexan-1-ol
  • Pyridine, 2,5-dimethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-6-(trifluoromethyl)-
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