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(tert-Butyldimethylsilyloxy)acetaldehyde

Also known as: 2-(tert-butyldimethylsiloxy)acetaldehyde, 2-(tert-butyldimethylsilyloxy)acetaldehyde, t-butyldimethylsiloxyacetaldehyde, (tert-butyl-dimethyl-silanyloxy)-acetaldehyde, Acetaldehyde,2-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-, MFCD01321229, 2-[tert-butyl(dimethyl)silyl]oxyacetaldehyde, {[Dimethyl(2-methyl-2-propanyl)silyl]oxy}acetaldehyde

(tert-Butyldimethylsilyloxy)acetaldehyde (CAS 102191-92-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H18O2Si and a molecular weight of 174.313 g/mol. Key properties include a melting point of 165-167ºC, a boiling point of 161.0±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 42.7±18.2 °C. It is classified under GHS with signal word Warning and hazard statements H226 — 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.
102191-92-4
Jingsj CID
J-29160-1
Molecular Formula
C8H18O2Si
Molecular Weight
174.313 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Melting Point165-167ºC
Boiling Point161.0±23.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point42.7±18.2 °C
Exact Mass174.107605
PSA26.30000
LogP2.61
Vapor Pressure2.3±0.3 mmHg at 25°C
Refractive Index1.412

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 (tert-Butyldimethylsilyloxy)acetaldehyde?

The CAS number of (tert-Butyldimethylsilyloxy)acetaldehyde is 102191-92-4.

What are the molecular formula and molecular weight of (tert-Butyldimethylsilyloxy)acetaldehyde?

(tert-Butyldimethylsilyloxy)acetaldehyde has molecular formula C8H18O2Si and molecular weight 174.313 g/mol.

Is (tert-Butyldimethylsilyloxy)acetaldehyde hazardous?

(tert-Butyldimethylsilyloxy)acetaldehyde has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of (tert-Butyldimethylsilyloxy)acetaldehyde?

For (tert-Butyldimethylsilyloxy)acetaldehyde, Upstream Products: 2-((tert-Butyldimethylsilyl)oxy)ethanol, ALLYL(TERT-BUTYLDIMETHYL)SILYL ETHER, tert-Butyldimethylchlorosilane; Downstream Products: 3-{[tert-Butyl(dimethyl)silyl]oxy}propan-1-ol, Lithium diisopropylamide, (3R,3aS,6aR)-hexahydrofuro[2,3-b]furan-3-ol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(tert-Butyldimethylsilyloxy)acetaldehyde (CAS 102191-92-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29160-1 (accessed 2026-11-09).

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