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4,6-Dichloro-2-methylpyrimidine

Also known as: 2-Methyl-4,6-dichloropyrimidine, 2,4-Dichloro-6-methylpyrimidine, 2-MDCP, 2-Methyl-4,6-dichloro-pyrimidine, Pyrimidine, 4,6-dichloro-2-methyl-, BUTTPARK 52\14-70, MFCD00090472

4,6-Dichloro-2-methylpyrimidine (CAS 1780-26-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4Cl2N2 and a molecular weight of 163.005 g/mol. Key properties include a melting point of 41.5-45.5 °C(lit.), a boiling point of 210.8±20.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 101.1±7.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H317 — May cause an allergic skin reaction and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1780-26-3
Jingsj CID
J-43931-6
Molecular Formula
C5H4Cl2N2
Molecular Weight
163.005 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point41.5-45.5 °C(lit.)
Boiling Point210.8±20.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point101.1±7.4 °C
Exact Mass161.975159
PSA25.78000
LogP1.57
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.551

GHS Safety & Compliance

Irritant / Environmental HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H317 — May cause an allergic skin reaction
  • H411 — Toxic to aquatic life with long lasting effects

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 4,6-Dichloro-2-methylpyrimidine?

The CAS number of 4,6-Dichloro-2-methylpyrimidine is 1780-26-3.

What are the molecular formula and molecular weight of 4,6-Dichloro-2-methylpyrimidine?

4,6-Dichloro-2-methylpyrimidine has molecular formula C5H4Cl2N2 and molecular weight 163.005 g/mol.

Is 4,6-Dichloro-2-methylpyrimidine hazardous?

4,6-Dichloro-2-methylpyrimidine has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction; H411 — Toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of 4,6-Dichloro-2-methylpyrimidine?

For 4,6-Dichloro-2-methylpyrimidine, Upstream Products: 4,6-Dihydroxy-2-methylpyrimidine, 4,6-Dihydroxy-2-methylpyrimidine; Downstream Products: 6-Chloro-N,N,2-trimethylpyrimidin-4-amine, 2-[4-(6-amino-2-methylpyrimidin-4-yl)piperazin-1-yl]ethanol, 2-Methylpyrimidine.

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

Last updated:

How to cite: Jingsj. "4,6-Dichloro-2-methylpyrimidine (CAS 1780-26-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43931-6 (accessed 2026-11-09).

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