5-Bromo-3-chloropyrazin-2-amine

5-溴-3-氯吡嗪-2-胺

Also known as: 2-Amino-5-bromo-3-chloropyrazine, 2-Amino-3-chloro-5-bromopyrazine, 5-Bromo-3-chloro-2-pyrazinamine, 5-Bromo-3-chloro-pyrazin-2-ylamine, 2-Pyrazinamine, 5-bromo-3-chloro-

5-Bromo-3-chloropyrazin-2-amine (CAS 21943-13-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C4H3BrClN3 and a molecular weight of 208.444 g/mol. It is also known as 2-Amino-5-bromo-3-chloropyrazine, 2-Amino-3-chloro-5-bromopyrazine and 5-Bromo-3-chloro-2-pyrazinamine. Key properties include a melting point of 128℃, a boiling point of 271.3±35.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 117.9±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21943-13-5
Jingsj CID
J-1436077-8
Molecular Formula
C4H3BrClN3
Chinese Name
5-溴-3-氯吡嗪-2-胺
Molecular Weight
208.444 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point128℃
Boiling Point271.3±35.0 °C at 760 mmHg
Density2.0±0.1 g/cm3
Flash Point117.9±25.9 °C

Frequently Asked Questions

What is the CAS number of 5-Bromo-3-chloropyrazin-2-amine?

The CAS number of 5-Bromo-3-chloropyrazin-2-amine is 21943-13-5.

What are the molecular formula and molecular weight of 5-Bromo-3-chloropyrazin-2-amine?

5-Bromo-3-chloropyrazin-2-amine has molecular formula C4H3BrClN3 and molecular weight 208.444 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Bromo-3-chloropyrazin-2-amine (CAS 21943-13-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1436077-8 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.