4,7-Dichloro-1H-imidazo[4,5-d]pyridazine

4,7-二氯-1H-咪唑并[4,5-d]哒嗪

Also known as: 4,7-Dichlor-1H-imidazo[4,5-d]pyridazin, 4,7-Dichlor-imidazo[4.5-d]pyridazin, RW2890, 1H-Imidazo[4,5-d]pyridazine, 4,7-dichloro-

4,7-Dichloro-1H-imidazo[4,5-d]pyridazine (CAS 17998-43-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl2N4 and a molecular weight of 189.00200 g/mol. It is also known as 4,7-Dichlor-1H-imidazo[4,5-d]pyridazin, 4,7-Dichlor-imidazo[4.5-d]pyridazin and RW2890. Key properties include a boiling point of 605.9ºC at 760 mmHg, a density of 1.792g/cm3 and a flash point of 347.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17998-43-5
Jingsj CID
J-1499904-6
Molecular Formula
C5H2Cl2N4
Chinese Name
4,7-二氯-1H-咪唑并[4,5-d]哒嗪
Molecular Weight
189.00200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point605.9ºC at 760 mmHg
Density1.792g/cm3
Flash Point347.1ºC

Frequently Asked Questions

What is the CAS number of 4,7-Dichloro-1H-imidazo[4,5-d]pyridazine?

The CAS number of 4,7-Dichloro-1H-imidazo[4,5-d]pyridazine is 17998-43-5.

What are the molecular formula and molecular weight of 4,7-Dichloro-1H-imidazo[4,5-d]pyridazine?

4,7-Dichloro-1H-imidazo[4,5-d]pyridazine has molecular formula C5H2Cl2N4 and molecular weight 189.00200 g/mol.

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

Last updated:

How to cite: Jingsj. "4,7-Dichloro-1H-imidazo[4,5-d]pyridazine (CAS 17998-43-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499904-6 (accessed 2026-10-22).

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