Description

15-Methylhexadecanoic Acid is a branched-chain saturated fatty acid, also known as an iso-C17 fatty acid, with the CAS registry number 1603-03-8. This compound serves as a valuable intermediate and building block in organic synthesis, prized for its ability to modify the physical and chemical properties of final products. It is essential for manufacturers and researchers in the pharmaceutical, cosmetic, and specialty chemical industries who require high-purity, structurally defined fatty acid derivatives.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, where its branched chain can influence bioavailability and metabolic stability.
• Cosmetic & Personal Care Ingredient: Acts as an emollient, surfactant precursor, or viscosity modifier in creams, lotions, and other formulations.
• Lubricant & Grease Additive: Serves as a precursor for synthetic esters used in high-performance lubricants, where branching improves low-temperature fluidity and oxidation resistance.
• Polymer & Resin Modification: Incorporated into polymers to act as a plasticizer, internal lubricant, or to modify crystallinity and flexibility.
• Chemical Research & Development: A key starting material for synthesizing more complex lipids, surfactants, and bio-based chemicals in academic and industrial R&D labs.
• Flavor & Fragrance Synthesis: Utilized as an intermediate in the production of certain aroma chemicals and esters.

Basic Information

Product Name	15-Methylhexadecanoic Acid
CAS No.	1603-03-8
Molecular Formula	C₁₇H₃₄O₂
Molecular Weight	270.45 g/mol
Synonyms	Isoheptadecanoic Acid; 15-Methylpalmitic Acid; 14-Methylhexadecanoic Acid; Iso-C17:0 Fatty Acid; 16-Methylhexadecanoic Acid (common misnomer); Heptadecanoic Acid, 15-methyl-; Isoheptadecylic Acid
EINECS	Contact for details

Quality Control

Our 15-Methylhexadecanoic Acid is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) that detail key parameters such as assay, melting point, and impurity profiles. Specifications can be tailored to meet the requirements of pharmaceutical, cosmetic, and industrial applications.

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 bases. For long-term storage, consider an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (GC or HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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