2-Amino-3,5-dichloropyrazine

Also known as: 3,5-dichloropyrazin-2-amine, 3,5-Dichloro-2-pyrazinamine, 2-Pyrazinamine,3,5-dichloro-, 3,5-Dichloro-pyrazin-2-ylamine, 3,5-dichloro pyrazin-2-amine

2-Amino-3,5-dichloropyrazine (CAS 873-42-7) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H3Cl2N3 and a molecular weight of 163.993 g/mol. Key properties include a boiling point of 275.6±35.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 120.5±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 873-42-7
Jingsj CID: J-1515398-7
Molecular Formula: C₄H₃Cl₂N₃
Molecular Weight: 163.993 g/mol
Category: Organohalogen Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	275.6±35.0 °C at 760 mmHg
Density	1.6±0.1 g/cm3
Flash Point	120.5±25.9 °C
Exact Mass	162.970398
PSA	51.80000
LogP	2.60
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.633

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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-Amino-3,5-dichloropyrazine?

The CAS number of 2-Amino-3,5-dichloropyrazine is 873-42-7.

What are the molecular formula and molecular weight of 2-Amino-3,5-dichloropyrazine?

2-Amino-3,5-dichloropyrazine has molecular formula C4H3Cl2N3 and molecular weight 163.993 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2-Amino-3,5-dichloropyrazine (CAS 873-42-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515398-7 (accessed 2026-11-09).

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