Thieno3,2-bthiophene

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Names

[ CAS No. ]:
251-41-2

[ Name ]:
Thieno3,2-bthiophene

[Synonym ]:
1,4-Dithiapentalene
thieno(3,2-b)thiophene
4-Dithiapentalene 1,4-Thiophthene
1,4-Dithiapentalene,1,4-Thiophthene
1,4-Dithiapentalene1,4-Thiophthene
1,4-THIOPHTHENE
Thieno[3,2-b]thiophene
thienothiophene
Thieno3,2-bthiophene

Chemical & Physical Properties

[ Density]:
1.4±0.1 g/cm3

[ Boiling Point ]:
223.4±13.0 °C at 760 mmHg

[ Melting Point ]:
56ºC

[ Molecular Formula ]:
C6H4S2

[ Molecular Weight ]:
140.23

[ Flash Point ]:
63.1±6.0 °C

[ Exact Mass ]:
139.975433

[ PSA ]:
56.48000

[ LogP ]:
5.31

[ Vapour Pressure ]:
0.1±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.729

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H315-H319-H335

[ Precautionary Statements ]:
P261-P305 + P351 + P338

[ Personal Protective Equipment ]:
dust mask type N95 (US);Eyeshields;Gloves

[ Hazard Codes ]:
Xn

[ Risk Phrases ]:
22-36/37/38

[ Safety Phrases ]:
26-36/37

[ RIDADR ]:
UN 3335

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Thieno[3,2-b]thiophene-2-carboxylic acid
  • 3-(t-butylsulfanyl)-2-ethynylthiophene
  • 3-Bromo-2-thiophenecarbaldehyde
  • 3-(2,2-diethoxyethylsulfanyl)thiophene
  • Ethyl thieno[3,2-b]thiophene-2-carboxylate
  • Acetic acid,2-(3-thienylthio)-
  • 2,3-dihydro-3-oxothieno[3,2-b]thiophen

DownStream

  • 3,6-dibromothieno[3,2-b]thiophene
  • 2,3,5-TRIBROMOTHIENO[3,2-B]THIOPHENE
  • METHYL THIENO[3,2-B]THIOPHENE-2-CARBOXYLATE
  • THIENO[3,2-B]THIOPHENE-2-CARBALDEHYDE
  • PERBROMOTHIENO[3,2-B]THIOPHENE
  • (5-cyanoiminothieno[3,2-b]thiophen-2-ylidene)cyanamide
  • Thieno[3,2-b]thiophene-2-carboxylic acid
  • 2,5-Dibromothieno[3,2-b]thiophene
  • 2,2’-Bithieno[3,2-b]thiophene
  • 3,6-dimethoxythieno[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

  • Benzo[b]thiophene-2-carboxaldehyde, 4-methyl
  • 7-iodobenzo[b]thiophene-2-carboxylic acid
  • 7-chloro-1-benzothiophene-2-sulfonyl chloride
  • Benzo[b]thiophene-2-carboxylic acid, 6-iodo
  • 6-methoxy-2-methylbenzo[b]thiophene
  • 6-fluorobenzo[b]thiophene-2-carboxaldehyde