Description

4,7-Dimethyl-5-Decyn-4,7-Diol is a specialized non-ionic surfactant and intermediate characterized by its unique acetylenic diol structure. This compound is valued for its excellent wetting, defoaming, and leveling properties in demanding formulations. It serves as a critical performance additive in industrial coatings, inks, and agrochemicals, where it enhances surface activity and process stability. Manufacturers and formulators seeking to improve product performance and production efficiency are the primary users of this chemical.

Application

• As a high-performance wetting and dispersing agent in water-based and solvent-based industrial coatings.
• As a defoamer and air-release agent in the manufacture of paints, inks, and adhesives.
• As a leveling agent to improve film formation and surface appearance in coating applications.
• As a surfactant and emulsifier in agricultural chemical formulations, including pesticides and herbicides.
• As a chemical intermediate for the synthesis of more complex surfactants and specialty polymers.
• In metalworking fluids and industrial cleaning formulations for enhanced surface wetting.

Basic Information

Product Name	4,7-Dimethyl-5-Decyn-4,7-Diol
CAS No.	126-87-4
Molecular Formula	C₁₂H₂₂O₂
Molecular Weight	198.30 g/mol
Synonyms	2,4,7,9-Tetramethyl-5-decyne-4,7-diol; 2,4,7,9-Tetramethyl-5-decyn-4,7-diol; Acetylenic diol; Surfynol 104; TMDD; 5-Decyne-4,7-diol, 2,4,7,9-tetramethyl-; Ethoxylated acetylenic diol precursor
EINECS	204-809-9

Quality Control

Our 4,7-Dimethyl-5-Decyn-4,7-Diol is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) detailing the results for key parameters such as assay, moisture content, and hydroxyl value is provided with every shipment to guarantee consistent quality and traceability.

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	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Melting Point	40 - 44 °C
Hydroxyl Value	Contact for details
Moisture (KF)	≤ 0.5%

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