2,5-Dibromo-3-methoxypyrazine

2,5-二溴-3-甲氧基吡嗪

Also known as: 2,5-Dibromo-3-methoxy-pyrazine, Pyrazine, 2,5-dibromo-3-methoxy-, QC-6821, UCCBMEAEKQVQCF-UHFFFAOYSA

2,5-Dibromo-3-methoxypyrazine (CAS 489431-66-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H4Br2N2O and a molecular weight of 267.90600 g/mol. It is also known as 2,5-Dibromo-3-methoxy-pyrazine, Pyrazine, 2,5-dibromo-3-methoxy- and QC-6821. Key properties include a boiling point of 241.549ºC at 760 mmHg, a density of 2.026g/cm3 and a flash point of 99.886ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
489431-66-5
Jingsj CID
J-1033885-8
Molecular Formula
C5H4Br2N2O
Chinese Name
2,5-二溴-3-甲氧基吡嗪
Molecular Weight
267.90600 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point241.549ºC at 760 mmHg
Density2.026g/cm3
Flash Point99.886ºC

Frequently Asked Questions

What is the CAS number of 2,5-Dibromo-3-methoxypyrazine?

The CAS number of 2,5-Dibromo-3-methoxypyrazine is 489431-66-5.

What are the molecular formula and molecular weight of 2,5-Dibromo-3-methoxypyrazine?

2,5-Dibromo-3-methoxypyrazine has molecular formula C5H4Br2N2O and molecular weight 267.90600 g/mol.

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

Last updated:

How to cite: Jingsj. "2,5-Dibromo-3-methoxypyrazine (CAS 489431-66-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1033885-8 (accessed 2026-10-22).

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