Description

4(3H)-Quinazolinone,8-Amino-3-Ethyl-2-Methyl-(9Ci) is a high-purity, advanced pharmaceutical intermediate belonging to the quinazolinone class of heterocyclic compounds. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs) and fine chemicals. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and life science sectors for drug discovery and development programs.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those targeting kinase inhibition and other therapeutic pathways.
• Organic Synthesis Building Block: Used in research and development for constructing complex heterocyclic molecules due to its reactive amino and carbonyl functional groups.
• Agrochemical Research: Serves as a starting material for developing new crop protection agents and pesticides.
• Biochemical Research: Employed in biochemical assays and as a standard for analytical method development in pharmacokinetic studies.
• Material Science: Investigated for the development of specialty chemicals and functional materials with specific optical or electronic properties.

Basic Information

Product Name	4(3H)-Quinazolinone,8-Amino-3-Ethyl-2-Methyl-(9Ci)
CAS No.	501361-25-7
Molecular Formula	C₁₁H₁₃N₃O
Molecular Weight	203.24 g/mol
Synonyms	8-Amino-3-ethyl-2-methyl-4(3H)-quinazolinone; 3-Ethyl-2-methyl-8-amino-4(3H)-quinazolinone; 8-Amino-3-ethyl-2-methylquinazolin-4(3H)-one; 4(3H)-Quinazolinone, 8-amino-3-ethyl-2-methyl-; 501361-25-7 (CAS); 8-Amino-3-ethyl-2-methyl-3,4-dihydroquinazolin-4-one
EINECS	Contact for details

Quality Control

Our 4(3H)-Quinazolinone,8-Amino-3-Ethyl-2-Methyl-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 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.