2,3,4,5-Thiophenetetracarboxylicacid

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Names

[ CAS No. ]:
4506-94-9

[ Name ]:
2,3,4,5-Thiophenetetracarboxylicacid

[Synonym ]:
2,3,4,5-Thiophenetetracarboxylicacid
Thiophentetracarbonsaeure
thiophene-2.3.4.5-tetracarboxylic acid
Thiophen-2,3,4,5-tetracarbonsaeure

Chemical & Physical Properties

[ Density]:
2.016g/cm3

[ Boiling Point ]:
624ºC at 760 mmHg

[ Molecular Formula ]:
C8H4O8S

[ Molecular Weight ]:
260.17800

[ Flash Point ]:
331.2ºC

[ Exact Mass ]:
259.96300

[ PSA ]:
177.44000

[ LogP ]:
0.54090

[ Index of Refraction ]:
1.746

Safety Information

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • tetramethyl 2,3,4,5-thiophenetetracarboxylate

DownStream

  • 1H,3H-Thieno[3,4-c]furan-1,3-dione

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

  • 2,3,4,5-Tetrahydro-2-methyl-5-[2-(6-methyl-3-pyridyl)ethyl]-1H-pyrido[4,3-b]indole
  • 2,3,4,5-tetramethoxyphenylformate
  • 2-(3,4,5-trimethoxyphenyl)ethyl isocyanate
  • 2,3,4,5-Tetrahydro-1H-3-benzazepine-7,8-diol hydrobromide (1:1)
  • 2,3,4,5,6-PENTAFLUOROPHENYL 4-METHOXYBENZENESULFONATE
  • 2,3,4,5-tetracarba-nido-hexaborane(6)