3-(Trimethylsilyl)propiolaldehyde diethyl acetal

3-三甲基硅炔醛二乙缩醛

Also known as: (3,3-Diethoxy-1-propyn-1-yl)trimethylsilane, (3,3-diethoxyprop-1-yn-1-yl)trimethylsilane, 1,1-diethoxy-3-trimethylsilyl-2-propyne, 3,3-diethoxy-1-trimethylsilyl-1-propyne, 3,3-diethoxyprop-1-ynyl(trimethyl)silane, Trimethylsilylpropynal diethyl acetal, Silane, (3,3-diethoxy-1-propyn-1-yl)trimethyl-

3-(Trimethylsilyl)propiolaldehyde diethyl acetal (CAS 87219-80-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H20O2Si and a molecular weight of 200.35000 g/mol. It is also known as (3,3-Diethoxy-1-propyn-1-yl)trimethylsilane, (3,3-diethoxyprop-1-yn-1-yl)trimethylsilane and 1,1-diethoxy-3-trimethylsilyl-2-propyne. Key properties include a boiling point of 170-172ºC, a density of 0.887g/cm3 and a flash point of 39.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 87219-80-5
Jingsj CID: J-636-5
Molecular Formula: C₁₀H₂₀O₂Si
Chinese Name: 3-三甲基硅炔醛二乙缩醛
Molecular Weight: 200.35000 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	170-172ºC
Density	0.887g/cm3
Flash Point	39.9ºC
Exact Mass	200.12300
PSA	18.46000
LogP	2.26630
Refractive Index	1.43-1.432

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 3-(Trimethylsilyl)propiolaldehyde diethyl acetal?

The CAS number of 3-(Trimethylsilyl)propiolaldehyde diethyl acetal is 87219-80-5.

What are the molecular formula and molecular weight of 3-(Trimethylsilyl)propiolaldehyde diethyl acetal?

3-(Trimethylsilyl)propiolaldehyde diethyl acetal has molecular formula C10H20O2Si and molecular weight 200.35000 g/mol.

What are the upstream and downstream products of 3-(Trimethylsilyl)propiolaldehyde diethyl acetal?

For 3-(Trimethylsilyl)propiolaldehyde diethyl acetal, Upstream Products: Trimethyl(trifluoromethyl)silane, Triethyl orthoformate, Diethoxymethyl acetate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3-(Trimethylsilyl)propiolaldehyde diethyl acetal (CAS 87219-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-636-5 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.