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4,6-dichloro-2-methylpyrimidin-5-amine

Also known as: 5-Amino-4,6-dichloro-2-methylpyrimidine, 2-Methyl-4,6-dichloro-5-aminopyrimidine, 4,6-Dichloro-2-methyl-5-pyrimidinamine, 5-Pyrimidinamine, 4,6-dichloro-2-methyl-

4,6-dichloro-2-methylpyrimidin-5-amine (CAS 39906-04-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5Cl2N3 and a molecular weight of 178.019 g/mol. Key properties include a melting point of 70-73 °C(lit.), a boiling point of 257.7±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 109.6±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
39906-04-2
Jingsj CID
J-1504001-4
Molecular Formula
C5H5Cl2N3
Molecular Weight
178.019 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point70-73 °C(lit.)
Boiling Point257.7±35.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point109.6±25.9 °C
Exact Mass176.986053
PSA51.80000
LogP2.09
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.615

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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-methylpyrimidin-5-amine?

The CAS number of 4,6-dichloro-2-methylpyrimidin-5-amine is 39906-04-2.

What are the molecular formula and molecular weight of 4,6-dichloro-2-methylpyrimidin-5-amine?

4,6-dichloro-2-methylpyrimidin-5-amine has molecular formula C5H5Cl2N3 and molecular weight 178.019 g/mol.

Is 4,6-dichloro-2-methylpyrimidin-5-amine hazardous?

4,6-dichloro-2-methylpyrimidin-5-amine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 4,6-dichloro-2-methylpyrimidin-5-amine?

For 4,6-dichloro-2-methylpyrimidin-5-amine, Upstream Products: 5-amino-4,6-dihydroxy-2-methylpyrimidine, 4,6-Dichloro-2-methyl-5-nitropyrimidine, Iron; Downstream Products: 2-Methyl-5-pyrimidinamine, 4-Chloro-6-methoxy-2-methylpyrimidin-5-amine, 1-[2-[(4,6-dichloro-2-methylpyrimidin-5-yl)amino]-4,5-dihydro-1H-imidazol-1-yl]ethanone.

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-methylpyrimidin-5-amine (CAS 39906-04-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504001-4 (accessed 2026-11-09).

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