Description

Tetramethyldecynediol is a high-purity, non-ionic surfactant and intermediate valued for its excellent wetting, dispersing, and defoaming properties. Its unique acetylenic diol structure provides superior performance in demanding formulations where stability and surface activity are critical. This chemical is essential for manufacturers in the coatings, inks, adhesives, and agrochemical industries seeking to enhance product performance and process efficiency.

Application

• Coatings & Inks: Acts as a powerful wetting and dispersing agent for pigments, improving color development and gloss in water-based and solvent-based systems.
• Adhesives & Sealants: Used as a surfactant and defoamer to ensure bubble-free application and improve substrate wetting.
• Agrochemical Formulations: Enhances the spreading and penetration of pesticides and herbicides, increasing their efficacy.
• Metalworking Fluids: Serves as a lubricity additive and emulsifier, improving fluid stability and surface finish.
• Industrial Cleaners: Provides effective wetting and defoaming in acidic and alkaline cleaning solutions.
• Polymerization: Functions as a surfactant and chain transfer agent in emulsion polymerization processes.

Basic Information

Product Name	Tetramethyldecynediol
CAS No.	1333-17-1
Molecular Formula	C14H26O2
Molecular Weight	226.36 g/mol
Synonyms	2,4,7,9-Tetramethyl-5-decyne-4,7-diol; 2,5,8,11-Tetramethyl-6-dodecyne-5,8-diol; TMDD; Acetylenic diol surfactant; Surfynol 104; Surfynol 104E; 5-Decyne-4,7-diol, 2,4,7,9-tetramethyl-; Dynol 604
EINECS	215-589-7

Quality Control

Our Tetramethyldecynediol is manufactured under a strict quality management system to ensure batch-to-batch consistency and reliability. Each lot is analyzed to meet precise specifications for purity, hydroxyl value, and moisture content. A comprehensive Certificate of Analysis (COA) documenting identity, assay, and key physical properties is provided with 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 (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
Assay (HPLC)	≥ 98.0%
Hydroxyl Value	Contact for details
Melting Point	40 - 45 °C
Moisture (KF)	≤ 0.5%

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