4-Amino-5-bromo-2-chloropyridine

4-氨基-5-溴-2-氯吡啶

Also known as: 5-Bromo-2-chloro-4-pyridinamine, 2-Chloro-5-bromo-4-aminopyridine, 5-Bromo-2-chloropyridin-4-amine, 4-Pyridinamine, 5-bromo-2-chloro-, 5-Bromo-2-chloro-pyridin-4-ylamine, 2-Chloro-4-amino-5-bromopyridine

4-Amino-5-bromo-2-chloropyridine (CAS 857730-21-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4BrClN2 and a molecular weight of 207.456 g/mol. It is also known as 5-Bromo-2-chloro-4-pyridinamine, 2-Chloro-5-bromo-4-aminopyridine and 5-Bromo-2-chloropyridin-4-amine. Key properties include a melting point of 127-129ºC, a boiling point of 315.5±37.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 144.6±26.5 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
857730-21-3
Jingsj CID
J-25990-5
Molecular Formula
C5H4BrClN2
Chinese Name
4-氨基-5-溴-2-氯吡啶
Molecular Weight
207.456 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point127-129ºC
Boiling Point315.5±37.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point144.6±26.5 °C

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-Amino-5-bromo-2-chloropyridine?

The CAS number of 4-Amino-5-bromo-2-chloropyridine is 857730-21-3.

What are the molecular formula and molecular weight of 4-Amino-5-bromo-2-chloropyridine?

4-Amino-5-bromo-2-chloropyridine has molecular formula C5H4BrClN2 and molecular weight 207.456 g/mol.

Is 4-Amino-5-bromo-2-chloropyridine hazardous?

4-Amino-5-bromo-2-chloropyridine has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "4-Amino-5-bromo-2-chloropyridine (CAS 857730-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25990-5 (accessed 2026-10-22).

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