Description

3,6-Dichloropyridazin-4-Ol Dihydrate is a high-purity, heterocyclic organic building block of significant interest in advanced chemical synthesis. This compound serves as a critical intermediate for the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, where its unique pyridazine core enables precise molecular modifications. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking to develop new compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of new drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Serves as a versatile building block in the creation of novel herbicides, fungicides, and insecticides, leveraging the bioactivity of the pyridazine moiety.
• Chemical Research: Used in academic and industrial R&D laboratories for studying heterocyclic chemistry, reaction mechanisms, and structure-activity relationships (SAR).
• Specialty Chemical Production: Intermediate for synthesizing dyes, pigments, and other functional materials where chlorinated pyridazine derivatives are required.
• Ligand and Catalyst Development: Potential precursor for creating specialized ligands used in catalytic processes and metal-organic frameworks (MOFs).

Basic Information

Product Name	3,6-Dichloropyridazin-4-Ol Dihydrate
CAS No.	1452487-57-8
Molecular Formula	C4H4Cl2N2O · 2H2O
Molecular Weight	203.00 g/mol (Anhydrous basis)
Synonyms	4(1H)-Pyridazinone, 3,6-dichloro-, dihydrate; 3,6-Dichloro-4(1H)-pyridazinone dihydrate; 3,6-Dichloro-1H-pyridazin-4-one dihydrate; 3,6-Dichloro-4-hydroxypyridazine dihydrate; 3,6-Dichloropyridazin-4(1H)-one dihydrate; 3,6-Dichloro-4-pyridazinol dihydrate
EINECS	Contact for details

Quality Control

Our 3,6-Dichloropyridazin-4-Ol Dihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The dihydrate form indicates moisture content; while stable under recommended conditions, prolonged exposure to extreme humidity or high temperatures should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	15.0% - 18.0% (Theoretical for dihydrate: ~17.7%)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residue on Ignition	≤ 0.1%

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