![Molecular structure of 4-[(Trimethylsilyl)ethynyl]aniline (CAS 75867-39-9)](/images/chem_structures_svg/376/75867-39-9.svg)
4-[(Trimethylsilyl)ethynyl]aniline
Also known as: 4-((Trimethylsilyl)ethynyl)aniline, 4-(2-Trimethylsilylethynyl)aniline, [(4-Aminophenyl)ethynyl]trimethylsilane, Benzenamine, 4-[2-(trimethylsilyl)ethynyl]-, 1-amino-4-trimethylsilylethynylbenzene, p-(2-Trimethylsilylethynyl)aniline
4-[(Trimethylsilyl)ethynyl]aniline (CAS 75867-39-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C11H15NSi and a molecular weight of 189.32900 g/mol. Key properties include a melting point of 94-98ºC, a boiling point of 258.873ºC at 760 mmHg, a density of 0.973g/cm3 and a flash point of 110.363ºC. 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.
- 75867-39-9
- Jingsj CID
- J-1513401-7
- Molecular Formula
- C11H15NSi
- Molecular Weight
- 189.32900 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 94-98ºC |
|---|---|
| Boiling Point | 258.873ºC at 760 mmHg |
| Density | 0.973g/cm3 |
| Flash Point | 110.363ºC |
| Exact Mass | 189.09700 |
| PSA | 26.02000 |
| LogP | 3.07890 |
| Refractive Index | 1.532 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H413
Frequently Asked Questions
What is the CAS number of 4-[(Trimethylsilyl)ethynyl]aniline?
The CAS number of 4-[(Trimethylsilyl)ethynyl]aniline is 75867-39-9.
What are the molecular formula and molecular weight of 4-[(Trimethylsilyl)ethynyl]aniline?
4-[(Trimethylsilyl)ethynyl]aniline has molecular formula C11H15NSi and molecular weight 189.32900 g/mol.
Is 4-[(Trimethylsilyl)ethynyl]aniline hazardous?
4-[(Trimethylsilyl)ethynyl]aniline has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 4-[(Trimethylsilyl)ethynyl]aniline?
For 4-[(Trimethylsilyl)ethynyl]aniline, Upstream Products: 4-Iodoaniline, Trimethylsilylacetylene, Trimethyl((4-nitrophenyl)ethynyl)silane; Downstream Products: 4-Aminoacetophenone, (4-Iodophenylethynyl)trimethylsilane, 4-Ethynylaniline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-[(Trimethylsilyl)ethynyl]aniline (CAS 75867-39-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1513401-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.