Description

Pivalolactone is a versatile lactone compound, specifically the cyclic ester of pivalic acid. This high-purity chemical intermediate is valued for its unique sterically hindered structure, which imparts stability and influences reactivity in synthesis. It is primarily sought after by manufacturers in the pharmaceutical and agrochemical sectors for the production of advanced active ingredients and specialty polymers. CAS NO 1955-45-9.

Application

• Pharmaceutical Synthesis: A key building block for active pharmaceutical ingredients (APIs), particularly in the synthesis of prodrugs and compounds requiring steric protection.
• Agrochemical Intermediates: Used in the manufacture of advanced herbicides, fungicides, and plant growth regulators where its bulky group enhances metabolic stability.
• Polymer Chemistry: Serves as a monomer or co-monomer for producing specialty polyesters and resins with tailored thermal and mechanical properties.
• Organic Synthesis: Acts as a precursor for introducing the pivaloyl (tert-butyl carbonyl) group into complex molecules, a common protecting group in multi-step syntheses.
• Flavor & Fragrance Industry: Utilized in the synthesis of certain esters and lactones that contribute to specific flavor or aroma profiles.
• Research & Development: An important reagent in academic and industrial R&D for exploring new synthetic methodologies and creating novel chemical entities.

Basic Information

Product Name	Pivalolactone
CAS No.	1955-45-9
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	3,3-Dimethylbutyrolactone; 3,3-Dimethyl-γ-butyrolactone; 3,3-Dimethyloxetan-2-one; Pivalic acid lactone; α,α-Dimethyl-γ-butyrolactone; tert-Butylacetic acid lactone; 3,3-Dimethyl-dihydro-2(3H)-furanone
EINECS	217-806-0

Quality Control

Our Pivalolactone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure it meets high-purity standards suitable for sensitive synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from strong bases, strong oxidizing agents, and excessive heat.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.428 - 1.432
Density (20°C)	0.98 - 1.02 g/mL

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