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1-(Trimethylsilylmethyl)urea

Also known as: N-[(Trimethylsilyl)methyl]urea, N-(trimethylsilylmethyl)urea, trimethylsilylmethylurea, Urea,N-[(trimethylsilyl)methyl]-, Trimethylsilylmethyl-harnstoff

1-(Trimethylsilylmethyl)urea (CAS 5663-03-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H14N2OSi and a molecular weight of 146.26300 g/mol. Key properties include a melting point of 115-117ºC(lit.), a boiling point of 185.7ºC at 760mmHg, a density of 0.935g/cm3 and a flash point of 66.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5663-03-6
Jingsj CID
J-1452777-6
Molecular Formula
C5H14N2OSi
Molecular Weight
146.26300 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point115-117ºC(lit.)
Boiling Point185.7ºC at 760mmHg
Density0.935g/cm3
Flash Point66.1ºC
Exact Mass146.08800
PSA55.12000
LogP2.04160
Refractive Index1.438

Frequently Asked Questions

What is the CAS number of 1-(Trimethylsilylmethyl)urea?

The CAS number of 1-(Trimethylsilylmethyl)urea is 5663-03-6.

What are the molecular formula and molecular weight of 1-(Trimethylsilylmethyl)urea?

1-(Trimethylsilylmethyl)urea has molecular formula C5H14N2OSi and molecular weight 146.26300 g/mol.

What are the upstream and downstream products of 1-(Trimethylsilylmethyl)urea?

For 1-(Trimethylsilylmethyl)urea, Upstream Products: (Isocyanatomethyl)trimethylsilane, Urea, (Chloromethyl)trimethylsilane; Downstream Products: (Trimethylsilyl)diazomethane.

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-(Trimethylsilylmethyl)urea (CAS 5663-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1452777-6 (accessed 2026-11-09).

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