Description

1.6-Chloro-4-Methyl-1(2H)-Phthalazinone CAS NO 784203-75-4 is a specialized heterocyclic organic compound belonging to the phthalazinone class, serving as a critical building block in advanced chemical synthesis. Its value lies in its unique molecular structure, which provides a versatile scaffold for 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 material science industries seeking reliable and consistent quality for their complex synthetic pathways.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly in oncology and central nervous system (CNS) therapeutic areas.
• Agrochemical Synthesis: Used as a precursor in the manufacture of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Employed in the synthesis of organic electronic materials, such as charge-transport layers or light-emitting components.
• Chemical Research & Development: Serves as a versatile scaffold for exploring new chemical reactions and creating libraries of novel heterocyclic compounds for screening.
• Dye & Pigment Intermediate: Acts as a precursor in the synthesis of specialized colorants and functional dyes with specific light-absorption properties.

Basic Information

Product Name	1.6-Chloro-4-Methyl-1(2H)-Phthalazinone
CAS No.	784203-75-4
Molecular Formula	C9H7ClN2O
Molecular Weight	194.62 g/mol
Synonyms	6-Chloro-4-methyl-1(2H)-phthalazinone; 6-Chloro-4-methylphthalazin-1(2H)-one; 4-Methyl-6-chloro-1(2H)-phthalazinone; 1(2H)-Phthalazinone, 6-chloro-4-methyl-; 6-Chloro-4-methyl-2H-phthalazin-1-one; 784203-75-4 (CAS); 6-Chloro-4-methylphthalazinone
EINECS	Contact for details

Quality Control

Our 1.6-Chloro-4-Methyl-1(2H)-Phthalazinone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and research applications. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be kept in opaque or amber packaging during storage and handling.

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.