Description

4-Pentyn-2-One, 3,3-Dimethyl- (9Ci) is a specialized alkyne-containing ketone building block with a unique sterically hindered structure. This compound matters for its role as a versatile synthon in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for applications such as click chemistry, ligand synthesis, and the development of novel polymers.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates, particularly those requiring alkyne functional groups for further modification.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators where its molecular framework introduces specific biological activity.
• Material Science & Polymer Chemistry: Acts as a monomer or cross-linking agent in the development of specialty polymers, resins, and advanced materials with tailored thermal or mechanical properties.
• Click Chemistry Reagent: Its alkyne moiety makes it an ideal participant in copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, a cornerstone of bioconjugation and material labeling.
• Ligand & Catalyst Development: Utilized as a precursor for synthesizing sophisticated ligands for transition metal catalysis, enhancing reaction selectivity and efficiency.
• Organic Synthesis Research: Employed in academic and industrial laboratories for method development and the exploration of new carbon-carbon bond forming reactions.

Basic Information

Product Name	4-Pentyn-2-One, 3,3-Dimethyl- (9Ci)
CAS No.	52066-34-9
Molecular Formula	C7H10O
Molecular Weight	110.15 g/mol
Synonyms	3,3-Dimethyl-4-pentyn-2-one; 4-Pentyn-2-one, 3,3-dimethyl-; 3,3-Dimethylpent-4-yn-2-one; 1,1-Dimethyl-2-propynyl methyl ketone; Methyl 1,1-dimethyl-2-propynyl ketone; 3,3-Dimethyl-1-butyn-3-ol methyl ketone; t-Butylethynyl methyl ketone
EINECS	Contact for details

Quality Control

Our 4-Pentyn-2-One, 3,3-Dimethyl- (9Ci) is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles 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, well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible materials such as strong oxidizing agents. Due to its nature as an organic solvent, ensure containers are kept tightly sealed when not in use to prevent evaporation and maintain purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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