Description

1-Chlorophthalazine is a versatile halogenated heterocyclic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique structure makes it a valuable building block for constructing complex molecules, particularly in the development of active pharmaceutical ingredients (APIs) and functional materials. This high-purity intermediate is essential for research and production teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking reliable and scalable synthesis pathways.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various pharmacologically active compounds, including potential kinase inhibitors and other therapeutic agents.
• Agrochemical Synthesis: Used as a building block for developing novel herbicides, fungicides, and pesticides with specific modes of action.
• Material Science Research: Serves as a monomer or functional unit in the creation of advanced polymers, ligands for catalysis, and organic electronic materials.
• Chemical Research & Development: A fundamental reagent for exploring new heterocyclic chemistry, cross-coupling reactions, and nucleophilic substitution pathways in academic and industrial R&D labs.
• Dye and Pigment Industry: Intermediate for synthesizing specialized phthalazine-based dyes and colorants.

Basic Information

Product Name	1-Chlorophthalazine
CAS No.	5784-45-2
Molecular Formula	C8H5ClN2
Molecular Weight	164.59 g/mol
Synonyms	Phthalazine, 1-chloro-; 1-Chlorophthalazine; 1-Chloro-1,2-diazanaphthalene; 1-Chloro-2,3-diazanaphthalene; NSC 403119; Chlorophthalazine; Phthalazine-1-yl chloride
EINECS	Contact for details

Quality Control

Our 1-Chlorophthalazine is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to verify identity and purity against established specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support compliance with cGMP and ISO 9001 standards for critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider under an inert atmosphere to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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