3-(Trimethylsilylethynyl)thiophene
Also known as: Trimethyl(3-thienylethynyl)silane, Trimethyl(thiophen-3-ylethynyl)silane, 3-[(Trimethylsilyl)ethynyl]thiophene, 3-[2-(Trimethylsilyl)ethynyl]thiophene, triMethyl(thiophen-3-ylethynyl)silane, trimethyl(2-thiophen-3-ylethynyl)silane, trimethyl-[2-(3-thiophenyl)ethynyl]silane, MFCD04039959, Silane, trimethyl[2-(3-thienyl)ethynyl]-
3-(Trimethylsilylethynyl)thiophene (CAS 130995-13-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H12SSi and a molecular weight of 180.342 g/mol. Key properties include a melting point of 36-41ºC(lit.), a boiling point of 203.6±22.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 77.0±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 130995-13-0
- Jingsj CID
- J-1522244-3
- Molecular Formula
- C9H12SSi
- Molecular Weight
- 180.342 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 36-41ºC(lit.) |
|---|---|
| Boiling Point | 203.6±22.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 77.0±22.3 °C |
| Exact Mass | 180.042892 |
| PSA | 28.24000 |
| LogP | 3.93 |
| Vapor Pressure | 0.4±0.4 mmHg at 25°C |
| Refractive Index | 1.517 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-(Trimethylsilylethynyl)thiophene?
The CAS number of 3-(Trimethylsilylethynyl)thiophene is 130995-13-0.
What are the molecular formula and molecular weight of 3-(Trimethylsilylethynyl)thiophene?
3-(Trimethylsilylethynyl)thiophene has molecular formula C9H12SSi and molecular weight 180.342 g/mol.
Is 3-(Trimethylsilylethynyl)thiophene hazardous?
3-(Trimethylsilylethynyl)thiophene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(Trimethylsilylethynyl)thiophene (CAS 130995-13-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522244-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.