Description

5-Pyrimidinol, 4-Chloro-2-Methyl- (9Ci) is a halogenated pyrimidine derivative, a versatile heterocyclic building block of significant importance in advanced organic synthesis. Its core value lies in its role as a key intermediate for constructing complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), crop protection agents, and other fine chemicals where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly for antiviral, anticancer, and other therapeutic agents.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides, leveraging its pyrimidine core.
• Chemical Research & Development: Serves as a fundamental reagent in academic and industrial R&D for exploring new heterocyclic chemistry and reaction pathways.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, dyes, and complex organic compounds requiring specific halogenated pyrimidine motifs.
• Material Science Precursor: Potential use as a monomer or precursor in the synthesis of advanced polymers and functional materials.

Basic Information

Product Name	5-Pyrimidinol, 4-Chloro-2-Methyl- (9Ci)
CAS No.	103660-23-7
Molecular Formula	C5H5ClN2O
Molecular Weight	144.56 g/mol
Synonyms	4-Chloro-2-methylpyrimidin-5-ol; 4-Chloro-2-methyl-5-pyrimidinol; 2-Methyl-4-chloro-5-hydroxypyrimidine; 5-Hydroxy-4-chloro-2-methylpyrimidine; 4-Chloro-2-methyl-5(1H)-pyrimidinone; 4-Chloro-2-methyl-5-pyrimidinone; 4-Chloro-2-methyl-5(1H)-pyrimidinol
EINECS	Contact for details

Quality Control

Our 5-Pyrimidinol, 4-Chloro-2-Methyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and away from moisture and direct light exposure to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 1.5%

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