Description

2-Methyl-5-Undecanol CAS NO 33978-71-1 is a branched-chain fatty alcohol, serving as a versatile intermediate and functional ingredient in specialty chemical synthesis. Its unique structure provides valuable properties for modifying the performance and characteristics of final formulations. This product is essential for manufacturers in the fragrance, flavor, and polymer industries seeking to create high-value, differentiated products.

Application

• Fragrance and Flavor Ingredient: Used as a building block or modifier in the synthesis of musky, woody, or floral aroma chemicals and flavor compounds.
• Polymer Additive: Acts as a plasticizer intermediate or a chain transfer agent in polymerization processes to control molecular weight and improve material flexibility.
• Lubricant and Surfactant Intermediate: Serves as a precursor for the production of synthetic esters used in high-performance lubricants, metalworking fluids, and non-ionic surfactants.
• Pharmaceutical Intermediate: Utilized in the synthesis of specific active pharmaceutical ingredients (APIs) or prodrugs requiring its defined alkyl chain structure.
• Corrosion Inhibitor Formulation: Incorporated into specialty formulations designed to protect metal surfaces in industrial applications.
• Solvent and Carrier: Functions as a high-boiling-point solvent for resins, dyes, and other specialty chemicals.

Basic Information

Product Name	2-Methyl-5-Undecanol
CAS No.	33978-71-1
Molecular Formula	C₁₂H₂₆O
Molecular Weight	186.33 g/mol
Synonyms	5-Undecanol, 2-methyl-; 2-Methylundecan-5-ol; Undecanol, 2-methyl-; 2-Methyl-5-hydroxyundecane; 5-Hydroxy-2-methylundecane
EINECS	Contact for details

Quality Control

Our 2-Methyl-5-Undecanol is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including GC, IR, and purity assays, to ensure it meets precise specifications and is free from unintended contaminants. Certificates of Analysis (COA) documenting all critical parameters 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, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.440 - 1.445
Specific Gravity (20/20°C)	0.825 - 0.835

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