Description

4-Hexanolide is a versatile lactone compound, also known as δ-hexalactone, valued for its unique chemical structure that serves as a key intermediate and building block in advanced synthesis. This compound is essential for industries requiring high-purity cyclic esters for the production of specialty polymers, fine chemicals, and flavor/fragrance components. It is particularly sought after by manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors for its role in creating complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring lactone functionalities.
• Polymer & Resin Production: Serves as a monomer or co-monomer for the synthesis of biodegradable polyesters and specialty polymers with tailored properties.
• Flavor & Fragrance Industry: Used in the creation of complex aroma chemicals, contributing creamy, coconut-like notes to fragrance compositions and food flavorings.
• Agrochemical Synthesis: Acts as an intermediate in the production of certain herbicides, pesticides, and plant growth regulators.
• Organic Synthesis & Research: A valuable reagent in academic and industrial R&D for ring-opening reactions, esterifications, and the synthesis of chiral compounds.
• Specialty Chemicals: Employed in the manufacture of plasticizers, solvents, and other performance chemicals where its lactone ring offers specific reactivity.

Basic Information

Product Name	4-Hexanolide
CAS No.	695-06-7
Molecular Formula	C6H10O2
Molecular Weight	114.14 g/mol
Synonyms	δ-Hexalactone; δ-Hexalactone; 5-Hydroxypentanoic acid lactone; 5-Pentanolide; Tetrahydro-2H-pyran-2-one; 4-Hydroxyhexanoic acid lactone; Hexanoic acid, 4-hydroxy-, γ-lactone; 4-Hydroxycaproic acid lactone
EINECS	211-778-8

Quality Control

Our 4-Hexanolide is produced and tested under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, identity, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, supporting its use in regulated industries. For specific grade requirements, including pharmaceutical or food-grade specifications, please contact our technical team.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0%
Refractive Index (20°C)	1.455 - 1.465
Specific Gravity (20/20°C)	1.020 - 1.050
Water Content (KF)	≤ 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.