Description

(S)-4-Heptanolide Standard For GC is a high-purity chiral chemical reference standard. Its primary value lies in providing accurate calibration and peak identification for gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS) analyses. This standard is essential for analytical laboratories in the pharmaceutical, flavor & fragrance, and fine chemical industries requiring precise quantification and verification of lactone compounds.

Application

• Primary Standard for GC/GC-MS Calibration: Used as a certified reference material for instrument calibration, method development, and validation in analytical chemistry.
• Chiral Analysis: Serves as a specific enantiomeric standard for the separation and analysis of stereoisomers in complex mixtures.
• Flavor and Fragrance Research: Acts as a key analytical standard for identifying and quantifying γ- and δ-lactones, which are important aroma compounds in food and perfumery.
• Pharmaceutical Impurity Profiling: Used in quality control to identify and quantify related substances or degradation products in active pharmaceutical ingredients (APIs).
• Chemical Synthesis Reference: Provides a benchmark for purity and identity in the synthesis of chiral lactones and other fine chemicals.
• Academic and Industrial R&D: Employed in research laboratories for studying the properties, reactions, and applications of chiral lactones.

Basic Information

Product Name	(S)-4-Heptanolide Standard For GC
CAS No.	31323-51-0
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	(S)-4-Heptanolide; (S)-γ-Heptalactone; (S)-4-Hydroxyheptanoic acid lactone; (S)-Tetrahydro-6-methyl-2H-pyran-2-one; (S)-6-Methyltetrahydro-2H-pyran-2-one; (S)-γ-Methyl-γ-butyrolactone; (S)-4-Methyl-4-butanolide; Lactone C7 (S-form)
EINECS	Contact for details

Quality Control

Every batch of our (S)-4-Heptanolide Standard For GC is produced and verified under strict quality management protocols. We guarantee high chemical and chiral purity to meet the exacting demands of analytical reference materials. Comprehensive testing, including chiral HPLC/GC and spectroscopic analysis, is performed. A Certificate of Analysis (COA) detailing purity, enantiomeric excess, and test results is provided with each shipment to ensure full traceability and compliance with your laboratory's quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Enantiomeric Excess (Chiral GC/HPLC)	≥ 99.0%
Specific Rotation	Contact for details
Refractive Index	Contact for details
Water Content (KF)	≤ 0.5%

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