Description

n-Heneicosane is a high-purity, straight-chain alkane hydrocarbon with the chemical formula C₂₁H₄₄. This compound serves as a critical reference standard and a versatile chemical intermediate in advanced research and industrial synthesis. It is essential for laboratories and manufacturers requiring precise linear hydrocarbon structures for calibration, material science, and the development of specialty chemicals. Key industries that utilize this product include pharmaceuticals, petrochemicals, and advanced materials manufacturing.

Application

• Gas Chromatography (GC) Reference Standard: Used for calibrating instruments and identifying hydrocarbon peaks due to its well-defined retention time.
• Pharmaceutical Research: Acts as an inert standard or a model compound in drug delivery system studies and solubility parameter determinations.
• Petrochemical Marker: Employed in geochemical analysis as a biomarker to study crude oil composition and maturation.
• Material Science: Serves as a precursor or additive in the synthesis of polymers, waxes, and phase-change materials for thermal energy storage.
• Organic Synthesis: Used as a building block or a non-reactive solvent in specialized organic reactions requiring long-chain alkanes.
• Cosmetics & Personal Care: Functions as an emollient or viscosity modifier in high-end cosmetic formulations.
• Lubricant & Fuel Research: Investigated for its properties in synthetic lubricant blends and as a component in fuel additive research.

Basic Information

Product Name	n-Heneicosane
CAS No.	629-94-7
Molecular Formula	C21H44
Molecular Weight	296.58 g/mol
Synonyms	Heneicosane; n-Heneicosane; C21 Alkane; Heneicosane, normal; UNII-0K2A2VO66H; Docosane, 1-methyl-; Heptadecane, 2,6,10,14-tetramethyl- (isomer reference); Alkane C21
EINECS	211-119-6

Quality Control

Our n-Heneicosane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including Gas Chromatography (GC) and spectroscopic methods, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, physical properties, and test results are provided with every shipment and are available upon request to support your quality assurance protocols.

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 and heat sources.

Specification

Item	Specification
Appearance	White crystalline solid or flakes
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Melting Point	39 - 41 °C
Boiling Point	~ 356 °C
Density	~ 0.79 g/cm³ at 20°C
Heavy Metals	< 10 ppm
Residue on Ignition	< 0.1%

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