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2,5-Diaminopyridine dihydrochloride

2,5-二氨基吡啶二盐酸盐

Also known as: 2,5-Diaminopyridine dihydrochloride, Pyridine-2,5-diamine dihydrochloride, 2,5-Pyridinediamine dihydrochloride, 2,5-Diaminopyridine 2HCl, pyridine-2,5-diamine dihydrochloride

2,5-Diaminopyridine dihydrochloride (CAS 26878-35-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9Cl2N3 and a molecular weight of 182.051 g/mol. It is also known as Pyridine-2,5-diamine dihydrochloride, 2,5-Pyridinediamine dihydrochloride and 2,5-Diaminopyridine 2HCl. Key properties include a melting point of 264 °C (dec.)(lit.), a boiling point of 329.1ºC at 760 mmHg and a flash point of 179.1ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
26878-35-3
Jingsj CID
J-1510691-3
Molecular Formula
C5H9Cl2N3
Chinese Name
2,5-二氨基吡啶二盐酸盐
Molecular Weight
182.051 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point264 °C (dec.)(lit.)
Boiling Point329.1ºC at 760 mmHg
Flash Point179.1ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,5-Diaminopyridine dihydrochloride?

The CAS number of 2,5-Diaminopyridine dihydrochloride is 26878-35-3.

What are the molecular formula and molecular weight of 2,5-Diaminopyridine dihydrochloride?

2,5-Diaminopyridine dihydrochloride has molecular formula C5H9Cl2N3 and molecular weight 182.051 g/mol.

Is 2,5-Diaminopyridine dihydrochloride hazardous?

2,5-Diaminopyridine dihydrochloride has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2,5-Diaminopyridine dihydrochloride (CAS 26878-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510691-3 (accessed 2026-10-25).

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