Description

4(1H)-Pyrimidinone, 5-Hydroxy-6-Methyl- (9Ci) is a heterocyclic organic compound belonging to the pyrimidinone class, serving as a versatile and high-value synthetic intermediate. Its core value lies in its functionalized structure, which makes it a critical building block for the development of complex molecules in advanced research and manufacturing. This compound is primarily needed by pharmaceutical R&D teams, agrochemical innovators, and fine chemical manufacturers for applications in drug discovery, crop protection, and specialty material synthesis.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for antiviral, anticancer, and anti-inflammatory drug candidates.
• Agrochemical Research: Used in the development of next-generation herbicides, fungicides, and plant growth regulators, leveraging its heterocyclic core for bioactivity.
• Fine Chemical Synthesis: Employed as a specialized building block for creating complex organic molecules used in dyes, pigments, and advanced material science.
• Biochemical Research: Serves as a reference standard or a starting material in metabolic pathway studies and enzyme inhibition research.
• Academic & Industrial R&D: Fundamental research tool in organic chemistry and medicinal chemistry for exploring new synthetic methodologies and structure-activity relationships.

Basic Information

Product Name	4(1H)-Pyrimidinone, 5-Hydroxy-6-Methyl- (9Ci)
CAS No.	65765-96-0
Molecular Formula	C5H6N2O2
Molecular Weight	126.11 g/mol
Synonyms	5-Hydroxy-6-methylpyrimidin-4(1H)-one; 6-Methyl-5-hydroxypyrimidin-4(1H)-one; 5-Hydroxy-6-methyl-4(1H)-pyrimidinone; 4-Hydroxy-5-methyl-6-pyrimidinol; 5-Hydroxy-6-methyl-1H-pyrimidin-4-one; 5-Hydroxy-6-methyl-1,4-dihydropyrimidin-4-one; 6-Methyl-4-hydroxy-5-pyrimidinol
EINECS	Contact for details

Quality Control

Our 4(1H)-Pyrimidinone, 5-Hydroxy-6-Methyl- (9Ci) is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment. We support custom synthesis and can tailor purity grades to meet specific research or cGMP starting material requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). The compound may be hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.