Description

1-Methylheptyl Stearate is a branched-chain fatty acid ester derived from stearic acid, offering unique physical properties compared to its linear counterparts. This compound is valued for its excellent lubricity, stability, and compatibility with a wide range of organic materials. It serves as a key functional ingredient for formulators in the lubricants, plastics, cosmetics, and specialty chemical industries, where performance under demanding conditions is required.

Application

• As a high-performance synthetic lubricant base stock or additive in metalworking fluids and industrial oils.
• Functioning as a plasticizer and internal lubricant in polymer processing (e.g., PVC, engineering plastics) to improve flow and mold release.
• Utilized as a textile lubricant and softening agent for fibers and yarns.
• Acting as a waterproofing agent and conditioner in leather treatment processes.
• Serving as a cosmetic emollient and skin-conditioning agent in personal care formulations.
• Used as a solvent and carrier for various active ingredients in specialty chemical applications.
• Employed in the formulation of release agents for rubber and plastic molding.
• Potential use as a raw material intermediate for further chemical synthesis.

Basic Information

Product Name	1-Methylheptyl Stearate
CAS No.	626-30-2
Molecular Formula	C₂₆H₅₂O₂
Molecular Weight	396.70 g/mol
Synonyms	Stearic Acid, 1-Methylheptyl Ester; Isooctyl Stearate; 2-Octyl Stearate; 1-Methylheptyl Octadecanoate; Octadecanoic Acid, 1-Methylheptyl Ester; Isooctyl Octadecanoate; 2-Octyl Octadecanoate; CAS 626-30-2
EINECS	210-929-5

Quality Control

Our 1-Methylheptyl Stearate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance characteristics. Certificates of Analysis (COA) documenting these results are available for every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (typically 15-25°C). Keep away from strong alkalis and incompatible materials. For long-term storage, consider using an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Acid Value	≤ 1.0 mg KOH/g
Saponification Value	140 - 150 mg KOH/g
Iodine Value	≤ 1.0 g I₂/100g
Water Content (KF)	≤ 0.1%
Specific Gravity (20°C)	0.855 - 0.865
Refractive Index (20°C)	1.445 - 1.455

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