- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 2-Ethynylthiophene
- Price: Check
- Purity: 97.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 2-Ethynylthiophene
- Price: ￥698.0/5g ￥198.0/1g
- Purity: 97.0%
- Stocking Period: 3 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 2-Ethynylthiophene
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
4298-52-6
4298-52-6 structure
- Name: 2-Ethynylthiophene
- Chemical Name: 2-Ethynylthiophene
- CAS Number: 4298-52-6
- Molecular Formula: C6H4S
- Molecular Weight: 108.161
- Catalog: Pharmaceutical intermediate Heterocyclic compound Thiophene compound
- Create Date: 2018-05-16 08:00:00
- Modify Date: 2025-08-23 15:54:44
| Name | 2-Ethynylthiophene |
|---|---|
| Synonyms |
ethynylthiophene
2-Acetylenylthiophene thienylacetylene (2-Thienyl)acetylene Thiophene, 2-ethynyl- Thiophene,2-ethynyl 2-Ethynylthiophene |
| 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 |
| 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 |
| Precursor 9 | |
|---|---|
| DownStream 9 | |
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |