Description

2,2-Dimethyl-But-3-Ynoic Acid is a specialized alkyne-substituted carboxylic acid derivative, serving as a versatile and high-value building block in advanced organic synthesis. Its unique structure, featuring both a tertiary carbon and a terminal alkyne group, makes it a critical precursor for constructing complex molecular frameworks. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and material science industries, where it is used to introduce sterically hindered, functionalized acid moieties.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sterically hindered carboxylic acid derivatives or alkyne handles for click chemistry.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and plant growth regulators that benefit from its specific structural motif.
• Material Science & Polymer Chemistry: Serves as a monomer or functionalizing agent for creating specialty polymers, dendrimers, and advanced materials with tailored properties.
• Organic Synthesis & Research: A valuable reagent for constructing complex natural products, macrocycles, and other organic molecules in academic and industrial R&D settings.
• Ligand & Catalyst Development: Utilized in the preparation of specialized ligands for metal-organic frameworks (MOFs) and catalysts due to its alkyne functionality.

Basic Information

Product Name	2,2-Dimethyl-But-3-Ynoic Acid
CAS No.	56663-76-4
Molecular Formula	C6H8O2
Molecular Weight	112.13 g/mol
Synonyms	3,3-Dimethylbut-2-ynoic Acid; 2,2-Dimethyl-3-butynoic Acid; 3,3-Dimethyl-2-butynoic Acid; 3-Butynoic Acid, 3,3-dimethyl-; 2,2-Dimethylbut-3-ynoic Acid; 3,3-Dimethylbutynoic Acid; 2,2-Dimethylbutynoic Acid; 3,3-Dimethylpropiolic Acid
EINECS	Contact for details

Quality Control

Our 2,2-Dimethyl-But-3-Ynoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment 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 place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials such as strong bases, strong oxidizing agents, and strong reducing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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