Description

1H-Pyrazole-5-Carboxylicacid,4-Ethynyl-1,3-Dimethyl-(9Ci) is a specialized heterocyclic building block featuring a pyrazole core functionalized with both a carboxylic acid and an ethynyl group. This unique molecular architecture makes it a high-value intermediate for the synthesis of complex molecules in advanced research and development. It is primarily needed by pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the research and development of new drug candidates, particularly for targeted therapies.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides with potentially improved efficacy.
• Ligand and Catalyst Development: The ethynyl and carboxylic acid groups allow for its use in constructing sophisticated ligands for catalysis and metal-organic frameworks (MOFs).
• Material Science Research: Acts as a monomer or cross-linking agent in the development of advanced polymers and specialty materials.
• Chemical Biology Probes: Utilized in the synthesis of molecular probes for studying biological processes due to its modifiable functional groups.
• Academic & Industrial R&D: A valuable compound for exploratory chemistry in both university laboratories and corporate R&D centers.

Basic Information

Product Name	1H-Pyrazole-5-Carboxylicacid,4-Ethynyl-1,3-Dimethyl-(9Ci)
CAS No.	243466-31-1
Molecular Formula	C8H8N2O2
Molecular Weight	164.16 g/mol
Synonyms	4-Ethynyl-1,3-dimethyl-1H-pyrazole-5-carboxylic acid; 4-Ethynyl-1,3-dimethylpyrazole-5-carboxylic acid; 1,3-Dimethyl-4-ethynyl-1H-pyrazole-5-carboxylic acid; 1H-Pyrazole-5-carboxylic acid, 4-ethynyl-1,3-dimethyl- (9CI); 243466-31-1; 4-Ethynyl-1,3-dimethyl-1H-pyrazole-5-carboxylate (deprotonated form)
EINECS	Contact for details

Quality Control

Our production of 1H-Pyrazole-5-Carboxylicacid,4-Ethynyl-1,3-Dimethyl-(9Ci) adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are available upon request 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 such as strong oxidizing agents, strong bases, and strong acids. For long-term storage, consider storing under an inert atmosphere to maintain optimal stability.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (Standard Grade)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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