ChemicalBook >> CAS DataBase List >>3-Ethynylthiophene
3-Ethynylthiophene
- CAS No.
- 67237-53-0
- Chemical Name:
- 3-Ethynylthiophene
- Synonyms
- thienylacetylene;3-Ethynylthiophene;3-Thienylacetylene;3-Ethynylthiophine;3-Thienylacethylene;Thiophene, 3-ethynyl-;(Thien-3-yl)acetylene;3-Ethynylthiophene>3-Ethynylthiophene 96%;3-ETHYNYLTHIOPHENE 96
- CBNumber:
- CB7498639
- Molecular Formula:
- C6H4S
- Molecular Weight:
- 108.16
- MDL Number:
- MFCD04039973
- MOL File:
- 67237-53-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
Last updated:2026-05-28 04:52:24
| Product description | Number | Pack Size | Price |
| 3-Ethynylthiophene 96% | 578797 | 1g | $97.6 |
| 3-Ethynylthiophene 96% | 578797 | 5g | $122 |
| 3-Ethynylthiophene >97.0%(GC) | E0892 | 1g | $63 |
| 3-Ethynylthiophene >97.0%(GC) | E0892 | 5g | $181 |
| 3-Ethynylthiophene >97% | OR40642 | 1g | $21 |
| More product size | |||
| Boiling point | 152-153 °C (lit.) |
|---|---|
| Density | 1.098 g/mL at 25 °C (lit.) |
| refractive index |
n |
| Flash point | 115 °F |
| storage temp. | Keep in dark place,Inert atmosphere,2-8°C |
| form | Liquid |
| color | Colorless to yellow to orange |
| Water Solubility | Slightly soluble in water. |
| InChI | InChI=1S/C6H4S/c1-2-6-3-4-7-5-6/h1,3-5H |
| InChIKey | MJHLPKWONJUCFK-UHFFFAOYSA-N |
| SMILES | C1SC=CC=1C#C |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS05,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H226-H315-H318-H335 | |||||||||
| Precautionary statements | P210-P233-P240-P280-P303+P361+P353-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 10-37/38-41 | |||||||||
| Safety Statements | 16-26-39 | |||||||||
| RIDADR | UN 1993 3/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29349990 | |||||||||
| Storage Class | 3 - Flammable liquids | |||||||||
| Hazard Classifications | Eye Dam. 1 Flam. Liq. 3 Skin Irrit. 2 STOT SE 3 |
|||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
3-Ethynylthiophene price More Price(65)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 578797 | 3-Ethynylthiophene 96% | 67237-53-0 | 1g | $97.6 | 2026-04-30 | Buy |
| Sigma-Aldrich | 578797 | 3-Ethynylthiophene 96% | 67237-53-0 | 5g | $122 | 2026-04-30 | Buy |
| TCI Chemical | E0892 | 3-Ethynylthiophene >97.0%(GC) | 67237-53-0 | 1g | $63 | 2026-04-30 | Buy |
| TCI Chemical | E0892 | 3-Ethynylthiophene >97.0%(GC) | 67237-53-0 | 5g | $181 | 2026-04-30 | Buy |
| Apolloscientific | OR40642 | 3-Ethynylthiophene >97% | 67237-53-0 | 1g | $21 | 2026-06-04 | Buy |
3-Ethynylthiophene Chemical Properties,Uses,Production
Uses
3-Ethynylthiophene is used in preparation of benzothiazonines by rhodium-catalyzed denitrogenative annulation reactions of sulfonylaryltriazoles with thiochromones.
Uses
3-Ethynylthiophene may be used in the synthesis of the following:
- 1-(2-bromobenzyl)-4-(thiophen-3-yl)-1H-1,2,3-triazole which is obtained by heating with 2-iodophenylethylazide in the presence of copper acetate monohydrate catalyst in N-methyl-2-pyrrolidone
- N-benzyl-1-phenyl-5-(thiophen-3-yl)-4-pentyn-2-amine via a multi-step reaction process
- [(C4H3S-3)C≡CAg]n, a polymeric compound obtained via reaction with silver nitrate in the presence of triethylamine in acetonitrile
- 4,5-bis(thiophen-3-ylethynyl)phthalonitrile via Sonogashira cross-coupling reaction with 4,5-dichlorophthalonitrile
3-Ethynylthiophene Preparation Products And Raw materials
Global( 191)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Changzhou Ansciep Chemical Co., Ltd. | +86 519 86305871 | sales@ansciepchem.com | CHINA | 4241 | 58 |
| Changzhou Carman Chemical Co., Ltd. | 15061933924 | CHINA | 514 | 58 | |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 +8613506123987 | marketing1@neostarunited.com | China | 8828 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 28009 | 58 |
View Lastest Price from 3-Ethynylthiophene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-11-18 | 3-Ethynylthiophene
67237-53-0
|
$1.10 | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited | |
 |
2024-02-19 | 3-Ethynylthiophene
67237-53-0
|
$1090.00 | 1g | 96 | 500 Kg | R&D Scientific Inc. | |
 |
2020-01-08 | 3-Ethynylthiophene
67237-53-0
|
$1.00 | 1KG | 98%HPLC | 10 tons/month | Career Henan Chemical Co |
-
- 3-Ethynylthiophene
67237-53-0
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 3-Ethynylthiophene
67237-53-0
- $1090.00
- 96
- R&D Scientific Inc.
-
- 3-Ethynylthiophene
67237-53-0
- $1.00
- 98%HPLC
- Career Henan Chemical Co
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3-Ethynylthiophene 96%
3-Ethynylthiophene>
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3-Ethynylthiophene - [E42372]
67237-53-0
Heterocyclic Compounds
Thiophenes
Heterocyclic Building Blocks
Building Blocks
