Description

5,5-Dimethylheptanoic Acid is a branched-chain fatty acid derivative characterized by its unique gem-dimethyl substitution on the fifth carbon. This structural feature makes it a valuable intermediate for synthesizing complex molecules where steric hindrance and specific lipophilicity are required. It is primarily sought by research and development chemists in the pharmaceutical and specialty chemical industries for applications in drug discovery, polymer modification, and the creation of advanced lubricant additives.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring specific chain branching to modulate bioavailability and metabolic stability.
• Specialty Polymer Synthesis: Used in the production of polyesters, polyamides, and other polymers to introduce side-chain branching, influencing physical properties like flexibility, crystallinity, and glass transition temperature.
• Lubricant & Fuel Additive Precursor: Acts as a precursor for esters and other derivatives that function as high-performance viscosity modifiers, pour-point depressants, or anti-wear agents in synthetic lubricants and fuels.
• Fragrance & Flavor Chemistry: Employed in the synthesis of esters and other derivatives that contribute musky, fatty, or waxy notes to fragrance compositions and flavoring agents.
• Agrochemical Synthesis: Utilized as an intermediate in the manufacture of certain herbicides, pesticides, and plant growth regulators where its lipophilic nature aids in formulation and activity.
• Metal Extraction & Separation: Its carboxylic acid functionality allows it to act as a ligand or extractant in hydrometallurgical processes for the separation and purification of specific metal ions.
• Surface Active Agent (Surfactant) Intermediate: Converted into salts or ethoxylates for use in specialty surfactants and emulsifiers, particularly where branched-chain hydrophobes are desired.
• Organic Synthesis Reagent: A versatile reagent in academic and industrial research for carbon chain elongation, homologation reactions, and the study of steric effects in organic transformations.

Basic Information

Product Name	5,5-Dimethylheptanoic Acid
CAS No.	52146-21-1
Molecular Formula	C9H18O2
Molecular Weight	158.24 g/mol
Synonyms	5,5-Dimethylheptanoic Acid; Heptanoic acid, 5,5-dimethyl-; 5,5-Dimethyloenanthic acid; 5,5-Dimethyl-enanthic acid; 5,5-Dimethyl-heptansaeure (German); 5,5-Diméthylheptanoïque acide (French); 2-Butyl-2-methylbutanoic acid; Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 5,5-Dimethylheptanoic Acid is manufactured 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) detailing key parameters such as assay (by GC or titration), identity (by IR spectroscopy), and impurity profiles. Specifications can be aligned with customer requirements for research, pilot, or commercial scale projects.

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 heat, sparks, open flames, and strong oxidizing agents. For long-term storage, consider under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20/D)	Contact for details
Density (g/mL, 20°C)	Contact for details

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