1-(Trimethylsilyl)-1-propyne
Also known as: trimethyl(prop-1-yn-1-yl)silane, trimethyl(prop-1-ynyl)silane, 1-(Trimethylsilyl)propyne, 1-Propynyltrimethylsilane, Trimethyl-1-propynylsilane, Silane, trimethyl-1-propyn-1-yl-, Silane, trimethyl-1-propynyl-, EINECS 228-314-5, MFCD00009271
1-(Trimethylsilyl)-1-propyne (CAS 6224-91-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6H12Si and a molecular weight of 112.245 g/mol. Key properties include a melting point of -69°C, a boiling point of 99-100 ºC, a density of 0.758 and a flash point of 4 ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6224-91-5
- Jingsj CID
- J-47842-2
- Molecular Formula
- C6H12Si
- Molecular Weight
- 112.245 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -69°C |
|---|---|
| Boiling Point | 99-100 ºC |
| Density | 0.758 |
| Flash Point | 4 ºC |
| Exact Mass | 112.070824 |
| LogP | 2.70 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 43.9±0.1 mmHg at 25°C |
| Refractive Index | 1.418-1.42 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-(Trimethylsilyl)-1-propyne?
The CAS number of 1-(Trimethylsilyl)-1-propyne is 6224-91-5.
What are the molecular formula and molecular weight of 1-(Trimethylsilyl)-1-propyne?
1-(Trimethylsilyl)-1-propyne has molecular formula C6H12Si and molecular weight 112.245 g/mol.
What are the upstream and downstream products of 1-(Trimethylsilyl)-1-propyne?
For 1-(Trimethylsilyl)-1-propyne, Upstream Products: Propyne, Trimethylsilylacetylene, Chlorotrimethylsilane; Downstream Products: 2-Chloropyridine, 2-Fluoropyridine, Trimethylfluorosilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-(Trimethylsilyl)-1-propyne (CAS 6224-91-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47842-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.