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4-Methylpyrimidine

Also known as: 6-Methylpyrimidine, 4-Methyl-1,3-diazine, Pyrimidine, 4-methyl-

4-Methylpyrimidine (CAS 3438-46-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2 and a molecular weight of 94.115 g/mol. Key properties include a melting point of 32ºC, a boiling point of 142.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 40.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3438-46-8
Jingsj CID
J-9107-6
Molecular Formula
C5H6N2
Molecular Weight
94.115 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point32ºC
Boiling Point142.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point40.6±0.0 °C
Exact Mass94.053101
PSA25.78000
LogP0.13
Vapor Pressure7.1±0.2 mmHg at 25°C
Refractive Index1.503
Additional Propertymiscible

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-Methylpyrimidine?

The CAS number of 4-Methylpyrimidine is 3438-46-8.

What are the molecular formula and molecular weight of 4-Methylpyrimidine?

4-Methylpyrimidine has molecular formula C5H6N2 and molecular weight 94.115 g/mol.

Is 4-Methylpyrimidine hazardous?

4-Methylpyrimidine has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of 4-Methylpyrimidine?

For 4-Methylpyrimidine, Upstream Products: 4,4-Dimethoxy-2-butanone, Methanimidic acid, (Z)-, 2,4-Dichloro-6-methylpyrimidine; Downstream Products: Pyrimidine-4-carbaldehyde oxime, Crotononitrile, Acetonitrile.

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

Last updated:

How to cite: Jingsj. "4-Methylpyrimidine (CAS 3438-46-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9107-6 (accessed 2026-11-09).

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