Description

γ-Methylene-γ-Butyrolactone is a versatile, unsaturated lactone building block with significant synthetic utility. This compound is valued for its bifunctional reactivity, serving as a key intermediate in the synthesis of complex molecules across various high-value industries. It is particularly sought after by research and development teams in the pharmaceutical, agrochemical, and specialty chemical sectors for constructing heterocyclic frameworks and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly those containing lactone or fused heterocyclic structures.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators, leveraging its reactive double bond and lactone functionality.
• Fine Chemical Production: Serves as a precursor for flavors, fragrances, and other specialty organic compounds requiring specific stereochemistry.
• Polymer Chemistry: Acts as a monomer or cross-linking agent for creating specialized polymers with tailored properties, such as biodegradable plastics or resins.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for Diels-Alder reactions, Michael additions, and ring-opening polymerizations.
• Material Science: Investigated for use in advanced material applications, including liquid crystals and photoactive compounds.

Basic Information

Product Name	γ-Methylene-γ-Butyrolactone
CAS No.	10008-73-8
Molecular Formula	C6H6O2
Molecular Weight	110.11 g/mol
Synonyms	2-Methylene-4-butanolide; 2-Methylene-γ-butyrolactone; 3-Methylene-dihydro-2(3H)-furanone; 4-Methylene-γ-butyrolactone; 2-Methylenebutyrolactone; γ-Methylene-γ-butyrolactone; 2-Methylene-4-hydroxybutanoic acid lactone
EINECS	233-000-5

Quality Control

Our γ-Methylene-γ-Butyrolactone is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including GC/HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of ignition. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.470 - 1.480
Density (g/mL, 20°C)	1.140 - 1.160

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