4,5-Dibromopyridazin-3-one

Also known as: 4,5-Dibromo-3(2H)-pyridazinone, 4,5-Dibromopyridazin-3(2H)-one, 4,5-dibromo-1H-pyridazin-6-one, MFCD00023641, 4,5-Dibromo-3-pyridazone

4,5-Dibromopyridazin-3-one (CAS 5788-58-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H2Br2N2O and a molecular weight of 253.880 g/mol. Key properties include a melting point of 231-233°C, a boiling point of 365.6ºC at 760mmHg and a density of 2.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5788-58-9
Jingsj CID: J-1101952-6
Molecular Formula: C₄H₂Br₂N₂O
Molecular Weight: 253.880 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	231-233°C
Boiling Point	365.6ºC at 760mmHg
Density	2.5±0.1 g/cm3
Exact Mass	251.853378
PSA	45.75000
LogP	0.23
Refractive Index	1.744

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4,5-Dibromopyridazin-3-one?

The CAS number of 4,5-Dibromopyridazin-3-one is 5788-58-9.

What are the molecular formula and molecular weight of 4,5-Dibromopyridazin-3-one?

4,5-Dibromopyridazin-3-one has molecular formula C4H2Br2N2O and molecular weight 253.880 g/mol.

What are the upstream and downstream products of 4,5-Dibromopyridazin-3-one?

For 4,5-Dibromopyridazin-3-one, Upstream Products: 2,3-Dibromo-4-oxobut-2-enoic acid; Downstream Products: 3(2H)-Pyridazinone, 2-benzyl-4,5-dibromopyridazin-3(2H)-one, 4,5-Dibromo-2-methyl-3(2H)-pyridazinone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4,5-Dibromopyridazin-3-one (CAS 5788-58-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1101952-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.