Description

1,4-Dichloro-5-Methylphthalazine CAS NO 678193-44-7 is a versatile halogenated heterocyclic building block of significant interest in advanced organic synthesis. This compound is valued for its role as a key intermediate in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily sought after by research institutions and industrial R&D departments focused on creating novel active ingredients, functional materials, and specialty dyes.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and oncology.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science Research: Acts as a building block for creating organic semiconductors, liquid crystals, and other functional organic materials.
• Dye & Pigment Industry: Employed in the synthesis of specialized heterocyclic dyes and colorants.
• Academic & Contract Research: A valuable reagent for methodological studies in organic chemistry, including cross-coupling and nucleophilic substitution reactions.
• Chemical Library Development: Used by companies specializing in combinatorial chemistry to build diverse screening libraries for drug discovery.

Basic Information

Product Name	1,4-Dichloro-5-Methylphthalazine
CAS No.	678193-44-7
Molecular Formula	C9H6Cl2N2
Molecular Weight	213.06 g/mol
Synonyms	5-Methyl-1,4-dichlorophthalazine; 1,4-Dichloro-5-methyl-phthalazine; 1,4-Dichloro-5-methylphthalazine; Phthalazine, 1,4-dichloro-5-methyl-; 678193-44-7
EINECS	Contact for details

Quality Control

Our 1,4-Dichloro-5-Methylphthalazine is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and development applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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