Description

Hentriacontyl Octadecanoate is a high-purity, long-chain fatty acid ester, also known as hentriacontyl stearate, with the CAS registry number 10580-23-1. This specialty ester is valued for its excellent lubricating properties, thermal stability, and hydrophobic nature, making it a critical performance additive in advanced formulations. It is primarily sought by manufacturers in the cosmetics, personal care, and specialty lubricants industries seeking to enhance product texture, stability, and performance.

Application

• Cosmetic & Personal Care: Acts as a high-performance emollient, viscosity modifier, and skin-conditioning agent in creams, lotions, lipsticks, and makeup products.
• Specialty Lubricants & Release Agents: Serves as a non-greasy lubricant and mold release agent in plastic, rubber, and metalworking processes.
• Pharmaceutical Excipient: Used as a tablet and capsule lubricant and a controlled-release matrix agent in solid dosage forms.
• Surface Coatings & Polishes: Imparts water repellency, gloss, and smoothness to automotive polishes, furniture waxes, and protective coatings.
• Textile & Fiber Processing: Functions as a softening agent and lubricant for synthetic fibers and yarns to reduce friction during processing.
• Research & Development: Employed as a standard or intermediate in chemical synthesis and material science research.

Basic Information

Product Name	Hentriacontyl Octadecanoate
CAS No.	10580-23-1
Molecular Formula	C₄₉H₉₈O₂
Molecular Weight	719.3 g/mol
Synonyms	Hentriacontyl stearate; Octadecanoic acid, hentriacontyl ester; Stearic acid, hentriacontyl ester; n-Hentriacontyl stearate; Docosanyl decyl stearate (related isomer); C31 Stearate; Long-chain alkyl stearate
EINECS	Contact for details

Quality Control

Our Hentriacontyl Octadecanoate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation by FT-IR, purity assay by GC or HPLC, and checks for key impurities to ensure it meets precise customer specifications. A Certificate of Analysis (COA) documenting all test results is provided with every shipment.

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 oxidizing agents and excessive heat.

Specification

Item	Specification
Appearance	White to off-white waxy solid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Melting Point	Contact for details
Acid Value	≤ 1.0 mg KOH/g
Heavy Metals	≤ 10 ppm

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