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1-Trimethylsilyl-3,3-dimethyl-1-butyne

Also known as: (3,3-Dimethyl-1-butynyl)(trimethyl)silane, 1-(tert-Butyl)-2-(trimethylsilyl)acetylene, tert-Butyl(trimethylsilyl)acetylene, 3,3-dimethylbut-1-ynyl(trimethyl)silane, Silane, (3,3-dimethyl-1-butyn-1-yl)trimethyl-, Silane, (3,3-dimethyl-1-butynyl)trimethyl-, 1-Butyne, 3,3-dimethyl-1-trimethylsilyl-, 1-(Trimethylsilyl)neohexyne, TIMTEC-BB SBB009032

1-Trimethylsilyl-3,3-dimethyl-1-butyne (CAS 14630-42-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H18Si and a molecular weight of 154.32500 g/mol. Key properties include a boiling point of 129.7ºC at 760mmHg, a density of 0.786g/cm3 and a flash point of 12.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14630-42-3
Jingsj CID
J-3127-6
Molecular Formula
C9H18Si
Molecular Weight
154.32500 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point129.7ºC at 760mmHg
Density0.786g/cm3
Flash Point12.2ºC
Exact Mass154.11800
LogP2.91330
Vapor Pressure12.3mmHg at 25°C
Refractive Index1.427

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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-3,3-dimethyl-1-butyne?

The CAS number of 1-Trimethylsilyl-3,3-dimethyl-1-butyne is 14630-42-3.

What are the molecular formula and molecular weight of 1-Trimethylsilyl-3,3-dimethyl-1-butyne?

1-Trimethylsilyl-3,3-dimethyl-1-butyne has molecular formula C9H18Si and molecular weight 154.32500 g/mol.

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-3,3-dimethyl-1-butyne (CAS 14630-42-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3127-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.