3,4-DIAMINO-THIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID DIETHYL ESTER

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Names

[ CAS No. ]:
4004-20-0

[ Name ]:
3,4-DIAMINO-THIENO[2,3-B]THIOPHENE-2,5-DICARBOXYLIC ACID DIETHYL ESTER

[Synonym ]:
Diethyl 3,4-diaminothieno<2,3-b>thiophene-2,5-dicarboxylate

Chemical & Physical Properties

[ Molecular Formula ]:
C12H14N2O4S2

[ Molecular Weight ]:
314.38100

[ Exact Mass ]:
314.03900

[ PSA ]:
161.12000

[ LogP ]:
3.64300

Safety Information

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • ethyl 3-amino-4-cyano-5-(ethoxycarbonylmethylsulfanyl)thiophene-2-carboxylate
  • Carbon disulphide
  • ethyl 2-bromoacetate
  • Malononitrile
  • ethyl chloroacetate

DownStream

  • Thieno(2,3-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%