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2,4-Dichloro-5-ethylpyrimidine

Also known as: 2,4-Dichloro-5-ethyl-1,3-diazine, 2,4-dichloro-5-ethylpyrimidine, Pyrimidine, 2,4-dichloro-5-ethyl-

2,4-Dichloro-5-ethylpyrimidine (CAS 34171-40-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H6Cl2N2 and a molecular weight of 177.031 g/mol. Key properties include a boiling point of 245.5±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 126.0±7.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34171-40-9
Jingsj CID
J-1387383-1
Molecular Formula
C6H6Cl2N2
Molecular Weight
177.031 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point245.5±20.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point126.0±7.4 °C
Exact Mass175.990799
PSA25.78000
LogP2.15
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.543

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 2,4-Dichloro-5-ethylpyrimidine?

The CAS number of 2,4-Dichloro-5-ethylpyrimidine is 34171-40-9.

What are the molecular formula and molecular weight of 2,4-Dichloro-5-ethylpyrimidine?

2,4-Dichloro-5-ethylpyrimidine has molecular formula C6H6Cl2N2 and molecular weight 177.031 g/mol.

What are the upstream and downstream products of 2,4-Dichloro-5-ethylpyrimidine?

For 2,4-Dichloro-5-ethylpyrimidine, Upstream Products: 5-Ethyluracil, 5-ethyl-2-thiouracil; Downstream Products: 2-Chloro-5-ethylpyrimidine.

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

Last updated:

How to cite: Jingsj. "2,4-Dichloro-5-ethylpyrimidine (CAS 34171-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1387383-1 (accessed 2026-11-09).

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