Description

7-(1-Ethyl-5-Methyl-1H-Pyrazol-4-Yl)-Pyrazolo-[1,5-A]Pyrimidine-2-Carboxylic Acid CAS NO 957509-33-0 is a high-purity, heterocyclic carboxylic acid derivative serving as a critical advanced pharmaceutical intermediate (API) and a versatile building block in organic synthesis. Its complex pyrazolo[1,5-a]pyrimidine core structure makes it invaluable for the research and development of novel bioactive compounds. This product is primarily targeted at pharmaceutical R&D and fine chemical synthesis sectors requiring precise molecular scaffolds.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs) targeting various therapeutic areas.
• Medicinal Chemistry Research: Core scaffold for designing and screening new drug candidates, particularly in kinase inhibitor and anticancer agent development.
• Chemical Biology Probes: Used to create specialized molecular probes for studying biological pathways and protein functions.
• Agrochemical Synthesis: Intermediate for developing advanced crop protection agents and pesticides.
• Material Science: Building block for synthesizing specialty polymers or organic electronic materials with unique properties.
• Contract Research & Manufacturing (CRO/CMO): Supplied to service organizations for custom synthesis and process development projects.

Basic Information

Product Name	7-(1-Ethyl-5-Methyl-1H-Pyrazol-4-Yl)-Pyrazolo-[1,5-A]Pyrimidine-2-Carboxylic Acid
CAS No.	957509-33-0
Molecular Formula	C13H13N5O2
Molecular Weight	271.28 g/mol
Synonyms	7-(1-Ethyl-5-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid; Pyrazolo[1,5-a]pyrimidine-2-carboxylic acid, 7-(1-ethyl-5-methyl-1H-pyrazol-4-yl)-; 957509-33-0; UNII-8V1F0V4J2H; 8V1F0V4J2H; 7-(1-Ethyl-5-methylpyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid; BDBM50111657; SCHEMBL15506211
EINECS	Contact for details

Quality Control

Our 7-(1-Ethyl-5-Methyl-1H-Pyrazol-4-Yl)-Pyrazolo-[1,5-A]Pyrimidine-2-Carboxylic Acid 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. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support compliance with cGMP and ISO standards for pharmaceutical intermediates.

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). Keep the container tightly sealed in a dry environment to minimize exposure to moisture. Due to its sensitivity to strong acids and organic solvents, store separately from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
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
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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