Description

4-Chloro-8-Methyl-5H-Pyrimido[5,4-B]Indole CAS NO 331443-97-1 is a high-purity, heterocyclic organic compound belonging to the fused pyrimidoindole class, serving as a critical advanced intermediate in modern chemical synthesis. Its unique molecular architecture makes it a valuable building block for constructing complex pharmacologically active molecules. This compound is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly those focused on discovering new active ingredients.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for oncology and central nervous system (CNS) targets.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core.
• Material Science: Serves as a building block for organic electronic materials, such as charge-transport layers or light-emitting components.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological studies and the exploration of new chemical spaces.
• Dye & Pigment Synthesis: Acts as a precursor for specialized colorants and functional dyes due to its conjugated ring system.

Basic Information

Product Name	4-Chloro-8-Methyl-5H-Pyrimido[5,4-B]Indole
CAS No.	331443-97-1
Molecular Formula	C12H8ClN3
Molecular Weight	229.66 g/mol
Synonyms	4-Chloro-8-methyl-5H-pyrimido[5,4-b]indole; 8-Methyl-4-chloro-5H-pyrimido[5,4-b]indole; 5H-Pyrimido[5,4-b]indole, 4-chloro-8-methyl-; 331443-97-1; 4-Chloro-8-methylpyrimido[5,4-b]indole; 4-Chloro-8-methyl-5H-pyrido[4,3-b]indole (common misnomer); 4-Cl-8-Me-Pyrimidoindole
EINECS	Contact for details

Quality Control

Our 4-Chloro-8-Methyl-5H-Pyrimido[5,4-B]Indole is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide Certificates of Analysis (COA) with detailed specifications for every shipment, supporting your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider storing under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 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.