1-(Trimethylsilyl)imidazole
Also known as: N-(Trimethylsilyl)imidazole, Trimethylsilylimidazole, 1-(Trimethylsilyl)-1H-imidazole, N-Trimethylsilylimidazole, TMS-Imidazole, TMSI, TSIM, 1-Imidazolyltrimethylsilane, Imidazole, 1-(trimethylsilyl)-, SIM, TMSIM, Trimethylsilylimidzole
1-(Trimethylsilyl)imidazole (CAS 18156-74-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H12N2Si and a molecular weight of 140.258 g/mol. Key properties include a melting point of -42 °C, a boiling point of 93-94 ºC (13 mmHg), a density of 0.956 and a flash point of 80.5±18.7 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18156-74-6
- Jingsj CID
- J-1012565-0
- Molecular Formula
- C6H12N2Si
- Molecular Weight
- 140.258 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -42 °C |
|---|---|
| Boiling Point | 93-94 ºC (13 mmHg) |
| Density | 0.956 |
| Flash Point | 80.5±18.7 °C |
| Exact Mass | 140.076981 |
| PSA | 17.82000 |
| LogP | 1.12 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.479 |
| Additional Property | decomposes |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933290090 |
|---|---|
| Summary | 2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. 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 1-(Trimethylsilyl)imidazole?
The CAS number of 1-(Trimethylsilyl)imidazole is 18156-74-6.
What are the molecular formula and molecular weight of 1-(Trimethylsilyl)imidazole?
1-(Trimethylsilyl)imidazole has molecular formula C6H12N2Si and molecular weight 140.258 g/mol.
Is 1-(Trimethylsilyl)imidazole hazardous?
1-(Trimethylsilyl)imidazole has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1-(Trimethylsilyl)imidazole?
For 1-(Trimethylsilyl)imidazole, Upstream Products: Imidazole, 1,1,1,3,3,3-Hexamethyldisilazane, Trimethylsilyl trichloroacetate; Downstream Products: Chlorotrimethylsilane, 1-(Methylsulfonyl)-1H-imidazole, 2-Chloropyridine.
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)imidazole (CAS 18156-74-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012565-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.