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Diazomethane

Also known as: Azimethylene, Diazirine, Azimethane, Diazonium methylide, Methane, diazo-

Diazomethane (CAS 334-88-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula CH2N2 and a molecular weight of 42.04000 g/mol. Key property: a melting point of -145ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
334-88-3
Jingsj CID
J-40697-6
Molecular Formula
CH2N2
Molecular Weight
42.04000 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-145ºC
Exact Mass42.02180
PSA37.39000
Refractive Index1.684

Frequently Asked Questions

What is the CAS number of Diazomethane?

The CAS number of Diazomethane is 334-88-3.

What are the molecular formula and molecular weight of Diazomethane?

Diazomethane has molecular formula CH2N2 and molecular weight 42.04000 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. "Diazomethane (CAS 334-88-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40697-6 (accessed 2026-11-07).

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