Description

4-Heptanolide CAS NO 105-21-5 is a seven-membered lactone, specifically γ-heptalactone, valued for its characteristic coconut-like aroma and flavor profile. This compound serves as a versatile intermediate and a key flavor and fragrance ingredient in high-value manufacturing. It is essential for producers in the flavor & fragrance, food additive, and fine chemical synthesis industries seeking reliable, high-purity lactone components.

Application

• As a flavoring agent and fragrance ingredient imparting creamy, coconut, and nutty notes in food, beverages, and perfumery.
• As a key chemical intermediate in the synthesis of more complex aroma chemicals and pharmaceutical actives.
• In the production of polyester resins and other polymers where lactones act as monomers or modifiers.
• As a solvent and reaction medium in specialized organic synthesis.
• For use in cosmetic formulations where its odor characteristics and chemical properties are beneficial.
• In agricultural chemical synthesis as a building block for certain active ingredients.

Basic Information

Product Name	4-Heptanolide
CAS No.	105-21-5
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	γ-Heptalactone; 4-Hydroxyheptanoic acid lactone; Heptanolide-1,4; 4-n-Propyl-γ-butyrolactone; 4-Propyloxolan-2-one; FEMA 2539; Coconut lactone; NSC 14626
EINECS	203-279-6

Quality Control

Our 4-Heptanolide is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the required specifications for identity, purity, and olfactory profile. Certificates of Analysis (COA) are provided and the product can be supplied to meet relevant standards such as FCC for food-grade applications. Our quality commitment ensures batch-to-batch consistency for your formulations.

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 oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Refractive Index (20°C)	1.438 - 1.442
Specific Gravity (20/20°C)	0.995 - 1.005
Odor	Characteristic, coconut-like

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