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2,6-Dichloropyrazine

Also known as: 2,6-Dichloro-1,4-diazine, Pyrazine, 2,6-dichloro-, 2,6-Dichloropyrazine (8CI), EINECS 225-316-8, MFCD00006125

2,6-Dichloropyrazine (CAS 4774-14-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2N2 and a molecular weight of 148.97 g/mol. Key properties include a melting point of 55-58 °C(lit.), a boiling point of 187.5±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 83.8±11.5 °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.
4774-14-5
Jingsj CID
J-45266-4
Molecular Formula
C4H2Cl2N2
Molecular Weight
148.97 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point55-58 °C(lit.)
Boiling Point187.5±35.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point83.8±11.5 °C
Exact Mass147.959503
PSA25.78000
LogP1.57
Vapor Pressure0.9±0.3 mmHg at 25°C
Refractive Index1.559

GHS Safety & Compliance

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

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 2,6-Dichloropyrazine?

The CAS number of 2,6-Dichloropyrazine is 4774-14-5.

What are the molecular formula and molecular weight of 2,6-Dichloropyrazine?

2,6-Dichloropyrazine has molecular formula C4H2Cl2N2 and molecular weight 148.97 g/mol.

Is 2,6-Dichloropyrazine hazardous?

2,6-Dichloropyrazine 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 2,6-Dichloropyrazine?

For 2,6-Dichloropyrazine, Upstream Products: Pyrazine 1,4-dioxide, Pyrazine, 2-Chloropyrazine; Downstream Products: 2,6-Dimethoxypyrazine, 2-Chloro-6-methoxypyrazine, 6-Chloropyrazine-2-carboxamide.

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

Last updated:

How to cite: Jingsj. "2,6-Dichloropyrazine (CAS 4774-14-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45266-4 (accessed 2026-11-09).

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