1-Methyl-3-p-tolyltriazene

1-甲基-3-对甲苯三氮烯

Also known as: 1-Methyl-3-(4-methylphenyl)triaz-1-ene, 1-Methyl-3-(4-methylphenyl)-1-triazene, 1-methyl-3-(4-methylphenyl)-1-triazen, 1-p-Tolyl-3-methyltriazene, 3-Methyl-1-p-tolyltriazene, 3-methyl-1-(4-methylphenyl)triazene, 4-methyl-N-(methyldiazenyl)aniline, Methyl-p-tolyltriazene, Methyl-4-tolyltriazene, N-Methyl-N'-p-tolyl-triazen, MFCD00008282

1-Methyl-3-p-tolyltriazene (CAS 21124-13-0) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C8H11N3 and a molecular weight of 149.193 g/mol. It is also known as 1-Methyl-3-(4-methylphenyl)triaz-1-ene, 1-Methyl-3-(4-methylphenyl)-1-triazene and 1-methyl-3-(4-methylphenyl)-1-triazen. Key properties include a melting point of 75-80ºC(lit.), a boiling point of 215.5±33.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 84.1±25.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21124-13-0
Jingsj CID
J-44092-9
Molecular Formula
C8H11N3
Chinese Name
1-甲基-3-对甲苯三氮烯
Molecular Weight
149.193 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point75-80ºC(lit.)
Boiling Point215.5±33.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point84.1±25.4 °C

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of 1-Methyl-3-p-tolyltriazene?

The CAS number of 1-Methyl-3-p-tolyltriazene is 21124-13-0.

What are the molecular formula and molecular weight of 1-Methyl-3-p-tolyltriazene?

1-Methyl-3-p-tolyltriazene has molecular formula C8H11N3 and molecular weight 149.193 g/mol.

Is 1-Methyl-3-p-tolyltriazene hazardous?

1-Methyl-3-p-tolyltriazene has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "1-Methyl-3-p-tolyltriazene (CAS 21124-13-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44092-9 (accessed 2026-10-23).

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