3,4-Thiophenedicarboxaldehyde

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Names

[ CAS No. ]:
1073-31-0

[ Name ]:
3,4-Thiophenedicarboxaldehyde

[Synonym ]:
3,4-Thiophenedicarboxaldehyde
3,4-diformylthiophene
thiophene-3,4-dicarboxaldehyde
tiopheno<3,4-c>dicarboxaldehyde

Chemical & Physical Properties

[ Density]:
1.371g/cm3

[ Boiling Point ]:
293.888ºC at 760 mmHg

[ Melting Point ]:
81 °C

[ Molecular Formula ]:
C6H4O2S

[ Molecular Weight ]:
140.16000

[ Flash Point ]:
131.539ºC

[ Exact Mass ]:
139.99300

[ PSA ]:
62.38000

[ LogP ]:
1.37310

[ Vapour Pressure ]:
0.002mmHg at 25°C

[ Index of Refraction ]:
1.669

Safety Information

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • 3,4-Dibromothiophene
  • N,N-Dimethylformamide
  • 3,4-Dicyanothiophene
  • 3,4-Diiodothiophene

DownStream

  • thieno[3,4-d]thiepine
  • 6-(2-ethylhexyl)thieno[3,4-f]isoindole-5,7-dione
  • 3,4-bis[(3-bromothiophen-2-yl)methyl]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%