2-Ethynylthiophene

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Names

[ CAS No. ]:
4298-52-6

[ Name ]:
2-Ethynylthiophene

[Synonym ]:
ethynylthiophene
2-Acetylenylthiophene
thienylacetylene
(2-Thienyl)acetylene
Thiophene, 2-ethynyl-
Thiophene,2-ethynyl
2-Ethynylthiophene

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
150.0±13.0 °C at 760 mmHg

[ Molecular Formula ]:
C6H4S

[ Molecular Weight ]:
108.161

[ Flash Point ]:
28.4±6.0 °C

[ Exact Mass ]:
108.003372

[ PSA ]:
28.24000

[ LogP ]:
2.08

[ Vapour Pressure ]:
5.0±0.3 mmHg at 25°C

[ Index of Refraction ]:
1.571

[ Storage condition ]:
Store Cold

MSDS

Click to get detail MSDS

Safety Information

[ Symbol ]:

GHS07

[ Signal Word ]:
Warning

[ Hazard Statements ]:
H302-H319

[ Precautionary Statements ]:
P305 + P351 + P338

[ Hazard Codes ]:
Xi: Irritant;

[ Risk Phrases ]:
R10;R36/37/38

[ Safety Phrases ]:
S16-S23-S26-S36/37/39

[ RIDADR ]:
UN 1993C 3 / PGIII

[ Packaging Group ]:
III

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • Trimethyl(2-thienylethynyl)silane
  • 1-(thiophen-2-yl)-2,2-dibromoethylene
  • 2-(1,1-dichloroethyl)-thiophene
  • 1-chloro-1-(2-thienyl)ethylene
  • 2-(2'-chlorovinyl)thiophene
  • 2-methyl-4-(thiophen-2-yl)but-3-yn-2-ol
  • 2-Iodothiophene
  • Bromo(ethynyl)magnesium
  • sodium acetylide

DownStream

  • 2-Propen-1-one,1,3-di-2-thienyl-
  • methyl 5-thiophen-2-ylpent-2-en-4-ynoate
  • 2-Thienylacetic acid
  • 2-Vinylthiophene
  • 2-Acetylthiophene
  • 4-Ethynyl-α,α,α-trifluorotoluene
  • 2-methylsulfonyl-1-thiophen-2-ylethanone
  • 2-(5-thiophen-2-ylthiophen-2-yl)furan
  • 1,3,5-TRI(THIOPHEN-2-YL)BENZENE

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

  • 4-bromo-2-ethynylthiophene
  • lithium,2-ethynylthiophene
  • 3-Ethyl-2-ethynylthiophene
  • 3-hexyl-2-ethynylthiophene
  • 3,4-dibutyl-2-ethynylthiophene
  • 3-(t-butylsulfanyl)-2-ethynylthiophene
  • N,N,2-triethylpiperidin-4-amine
  • 3-(4-Methylthiophen-2-yl)prop-2-en-1-ol
  • 3-Pyridinol, 6-amino-5-(dimethylphosphinyl)-
  • 4-Chloro-1,7-naphthyridin-8-amine
  • N-Ethyl-4-(trifluoromethyl)aniline Hydrochloride
  • 2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methoxybutanamido]benzoic acid
  • 5-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylbutanamido]hexanoic acid
  • 4-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-enamido]methyl}benzoic acid
  • 3-[tert-butyl(propyl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid
  • 3-[N-cyclopropyl-7-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)heptanamido]propanoic acid
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