Description

6-Chlorophthalazinone is a versatile and high-value heterocyclic building block primarily used in advanced organic synthesis. Its core value lies in its reactive chlorinated phthalazinone scaffold, which enables the construction of complex molecular architectures. This intermediate is particularly critical for researchers and manufacturers in the pharmaceutical and agrochemical sectors developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of poly(ADP-ribose) polymerase (PARP) inhibitors and other targeted oncology therapeutics.
• Agrochemical Synthesis: Used in the development of novel herbicides and fungicides, leveraging its heterocyclic structure for biological activity.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport materials and host materials in emissive layers.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing high-performance, color-fast pigments and specialty dyes.
• Material Science Research: Employed in the development of novel polymers, ligands for catalysis, and advanced organic frameworks.
• Chemical Research & Development: A valuable scaffold for medicinal chemistry and process chemistry optimization in API development.

Basic Information

Product Name	6-Chlorophthalazinone
CAS No.	57835-96-8
Molecular Formula	C8H5ClN2O
Molecular Weight	180.59 g/mol
Synonyms	6-Chloro-1(2H)-phthalazinone; 6-Chloro-2H-phthalazin-1-one; 6-Chlorophthalazin-1(2H)-one; 6-Chloro-1-phthalazinone; 6-Chloro-1,2-dihydrophthalazin-1-one; 6-Chloro-1-oxo-1,2-dihydrophthalazine; 6-Chloro-1,2-dihydro-1-phthalazinone
EINECS	Contact for details

Quality Control

Our 6-Chlorophthalazinone is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider storage under inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.