Description

1,6-Dichlorophthalazine is a versatile halogenated heterocyclic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its value lies in its dual reactive chlorine sites on the phthalazine core, enabling precise functionalization for building complex molecular architectures. This high-purity building block is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing novel active ingredients.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting kinase inhibition or other heterocycle-dependent biological pathways.
• Agrochemical Synthesis: Building block for developing new herbicides, fungicides, and insecticides that require the phthalazine scaffold for bioactivity.
• Material Science Research: Used in the development of organic electronic materials, such as ligands for metal-organic frameworks (MOFs) or components for charge-transport layers.
• Dye and Pigment Chemistry: Intermediate for creating specialized heterocyclic dyes with specific colorfastness and electronic properties.
• Chemical Research & Development: A valuable scaffold for medicinal chemistry and process chemistry for structure-activity relationship (SAR) studies and route scouting.

Basic Information

Product Name	1,6-Dichlorophthalazine
CAS No.	124556-78-1
Molecular Formula	C8H4Cl2N2
Molecular Weight	199.04 g/mol
Synonyms	1,6-Dichlorophthalazine; Phthalazine, 1,6-dichloro-; 1,6-DCP; NSC 405124; 1,6-Dichloro-2,3-diazanaphthalene; 1,6-Dichlorobenzodiazine; 1,6-Dichlorophthalazine (technical grade); 1,6-Dichloro-1,2-diazanaphthalene
EINECS	Contact for details

Quality Control

Our 1,6-Dichlorophthalazine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, residual solvent analysis, and identity confirmation. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory needs.

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 strong bases and reducing agents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (HPLC, Area %)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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