Description

n-Pentacosane CAS NO 629-99-2 is a high-purity, long-chain linear alkane, specifically a C25 saturated hydrocarbon. This compound serves as a critical standard and reference material in analytical chemistry and as a versatile building block in advanced materials research. It is essential for industries and research institutions requiring precise calibration, synthesis intermediates, or model compounds for studying hydrocarbon behavior. Key users include manufacturers of specialty chemicals, academic and industrial R&D laboratories, and producers of phase change materials and synthetic lubricants.

Application

• Analytical Reference Standard: Used as a primary standard in Gas Chromatography (GC) and High-Performance Liquid Chromatography (HPLC) for calibrating instruments and quantifying other hydrocarbons.
• Chemical Synthesis Intermediate: Acts as a key starting material or chain extender in the synthesis of surfactants, polymers, and other specialty organic compounds.
• Materials Science Research: Employed as a model compound for studying crystallization kinetics, solid-solid phase transitions, and thermal properties of n-alkanes.
• Phase Change Materials (PCMs): Investigated for use in thermal energy storage systems due to its specific melting and freezing characteristics.
• Lubricant & Wax Formulation: Serves as a high-melting-point component in the formulation of synthetic lubricants, polishes, and specialty waxes.
• Entomological Studies: Used in research on insect pheromones and cuticular hydrocarbons for species identification and behavioral studies.

Basic Information

Product Name	n-Pentacosane
CAS No.	629-99-2
Molecular Formula	C₂₅H₅₂
Molecular Weight	352.68 g/mol
Synonyms	Pentacosane; n-Pentacosane; NSC 17290; Pentacosane, normal; C25 Alkane; n-C25H52; Straight-chain C25 alkane; Heptacosane (common historical misnomer, ensure verification)
EINECS	211-110-0

Quality Control

Our n-Pentacosane is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets the high standards required for research and industrial applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profile.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 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% (Typical 99.0%+)
Melting Point	53.0 - 54.5 °C
Heavy Metals	< 10 ppm

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