Description

4(1H)-Pyrimidinone, 2-Amino-5-Chloro- (9Ci) is a high-purity heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its unique pyrimidinone core, which is a privileged scaffold for developing active pharmaceutical ingredients and specialty agrochemicals. This intermediate is essential for research and production chemists in the pharmaceutical, agrochemical, and fine chemical industries seeking to create novel molecules with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of novel drug candidates, particularly in antiviral, anticancer, and antimicrobial therapeutic areas.
• Agrochemical Synthesis: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators where the pyrimidinone structure confers specific biological activity.
• Fine Chemical Production: Serves as a versatile precursor for synthesizing complex dyes, pigments, and other specialty organic compounds.
• Biochemical Research: Employed as a standard or reagent in biochemical studies and enzymatic assays investigating nucleotide analogs and related metabolic pathways.
• Material Science: Potential use in the development of organic electronic materials and metal-organic frameworks (MOFs) due to its coordinating heteroatoms.

Basic Information

Product Name	4(1H)-Pyrimidinone, 2-Amino-5-Chloro- (9Ci)
CAS No.	89033-81-8
Molecular Formula	C4H4ClN3O
Molecular Weight	145.55 g/mol
Synonyms	2-Amino-5-chloro-4(1H)-pyrimidinone; 5-Chloro-2-aminopyrimidin-4(1H)-one; 2-Amino-5-chloro-4-hydroxypyrimidine; 5-Chloro-2-amino-4-pyrimidinol; 2-Amino-5-chloro-4-pyrimidinol; 5-Chloro-2-aminopyrimidin-4-ol; 2-Amino-5-chloropyrimidin-4(3H)-one; 89033-81-8
EINECS	Contact for details

Quality Control

Our 4(1H)-Pyrimidinone, 2-Amino-5-Chloro- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request 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 controlled room temperature (typically 15-25°C). Keep away from incompatible materials. For long-term storage, consider under an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.