Description

4,5-Dichloro-6-Nitro-2,3-Dihydropyridazin-3-One is a high-purity, synthetically valuable heterocyclic building block. This compound is a key intermediate in the synthesis of complex molecules, particularly in the pharmaceutical and agrochemical sectors, where its unique halogenated and nitrated pyridazinone structure enables the development of novel active ingredients. Industrial researchers and process chemists rely on this material for its role in creating advanced chemical libraries and fine-tuning the properties of target compounds. Consistent quality and reliable supply are paramount for its successful application in research and development pipelines.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its reactive sites for structural diversification.
• Chemical Research & Development: Serves as a versatile building block in medicinal chemistry and process chemistry for creating complex heterocyclic scaffolds.
• Material Science Precursor: Potential use in the development of specialty polymers, dyes, and advanced organic materials requiring specific electronic properties.
• Academic Research: Employed in university and institutional labs for studying heterocyclic chemistry, reaction mechanisms, and structure-activity relationships (SAR).

Basic Information

Product Name	4,5-Dichloro-6-Nitro-2,3-Dihydropyridazin-3-One
CAS No.	13645-43-7
Molecular Formula	C4HCl2N3O3
Molecular Weight	209.97 g/mol
Synonyms	4,5-Dichloro-6-nitropyridazin-3(2H)-one; 4,5-Dichloro-6-nitro-2,3-dihydropyridazin-3-one; 6-Nitro-4,5-dichloro-2,3-dihydropyridazin-3-one; 4,5-Dichloro-6-nitro-3(2H)-pyridazinone; 3(2H)-Pyridazinone, 4,5-dichloro-6-nitro-; 4,5-Dichloro-6-nitro-1,2-dihydropyridazin-3-one; 4,5-Dichloro-6-nitro-1H-pyridazin-3-one
EINECS	Contact for details

Quality Control

Our 4,5-Dichloro-6-Nitro-2,3-Dihydropyridazin-3-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and chemical identity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our commitment to consistent quality supports your R&D and scale-up processes with reliable, traceable materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.