5-Amino-4-chloropyridazin-3(2H)-one

5-氨基-4-氯-3-哒嗪酮

Also known as: 4-Amino-5-chloropyridazin-6-one, 4-AMINO-5-CHLOROPYRIDAZIN-6-ON, Desphenyl Chloridazon, Chloridazon-desphenyl, Chloridazone-desphenyl, Chloridazon Metabolite B, NSC 38293, 5-Amino-4-chloro-3(2H)-pyridazinone, 5-Amino-4-chloro-3-pyridazinone, 5-amino-4-chloro-2H-pyridazin-3-one

CAS No.: 6339-19-1
Jingsj CID: J-1437764-2
Molecular Formula: C₄H₄ClN₃O
Chinese Name: 5-氨基-4-氯-3-哒嗪酮
Molecular Weight: 145.54700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	297-300ºC (dec.)
Density	1.798g/cm3

Frequently Asked Questions

What is the CAS number of 5-Amino-4-chloropyridazin-3(2H)-one?

6339-19-1

What are the molecular formula and molecular weight of 5-Amino-4-chloropyridazin-3(2H)-one?

C4H4ClN3O, molecular weight 145.54700 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026