Description

Ethyl 8-Amino-1-Methyl-4,5-Dihydro-1H-Pyrazolo[4,3-H]Quinazoline-3-Carboxylate is a high-purity, advanced pharmaceutical intermediate with the CAS number 802534-49-2. This compound is valued for its role as a critical building block in the synthesis of complex heterocyclic molecules, offering significant advantages in medicinal chemistry research and development. It is primarily sought by R&D teams and production units in the pharmaceutical and biotechnology sectors for the development of novel therapeutic agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Medicinal Chemistry Research: Used in structure-activity relationship (SAR) studies and lead optimization for new chemical entities.
• Heterocyclic Compound Synthesis: Serves as a versatile scaffold for constructing complex fused-ring systems with potential biological activity.
• Biochemical Research: Employed in the development of chemical probes and inhibitors for biological target validation.
• Contract Manufacturing (CMO): Supplied to contract research and manufacturing organizations for custom synthesis projects.
• Academic Research: Utilized in university and institutional labs for exploratory organic synthesis and methodology development.

Basic Information

Product Name	Ethyl 8-Amino-1-Methyl-4,5-Dihydro-1H-Pyrazolo[4,3-H]Quinazoline-3-Carboxylate
CAS No.	802534-49-2
Molecular Formula	C14H17N5O2
Molecular Weight	287.32 g/mol
Synonyms	8-Amino-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylic acid ethyl ester; Ethyl 8-amino-1-methyl-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxylate; 1H-Pyrazolo[4,3-h]quinazoline-3-carboxylic acid, 8-amino-4,5-dihydro-1-methyl-, ethyl ester; 802534-49-2; UNII-9J4Z8K8C6L; 9J4Z8K8C6L
EINECS	Contact for details

Quality Control

Our Ethyl 8-Amino-1-Methyl-4,5-Dihydro-1H-Pyrazolo[4,3-H]Quinazoline-3-Carboxylate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

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

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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