Description

Preventol D2 is a high-purity chemical compound widely recognized for its efficacy as a preservative and biocide. Its primary value lies in its ability to inhibit microbial growth, ensuring product stability and shelf-life extension across various formulations. This makes it a critical component for manufacturers in the industrial, pharmaceutical, and personal care sectors who require reliable microbial control. The compound is supplied under stringent quality controls to meet the demanding specifications of global B2B clients.

Application

• Primary use as a preservative in industrial fluids, including metalworking coolants, adhesives, and polymer emulsions.
• Effective biocide in paint, coating, and ink formulations to prevent spoilage in the can and in-film.
• Key ingredient in cosmetic and personal care products (e.g., shampoos, creams) for shelf-life protection.
• Used in the manufacturing of disinfectants and sanitizers for institutional and industrial cleaning.
• Application in wood preservation treatments to protect against fungal and algal growth.
• Incorporated into construction materials like sealants and grouts to prevent microbial degradation.

Basic Information

Product Name	Preventol D2
CAS No.	2749-70-4
Molecular Formula	C9H11Cl2N3O2S
Molecular Weight	296.17 g/mol
Synonyms	Dichlorophen; 2,2'-Methylenebis(4-chlorophenol); Anthiphen; Di-5; G-4; Preventol GD; NCI-C02633; Bis(5-chloro-2-hydroxyphenyl)methane
EINECS	220-400-1

Quality Control

Our Preventol D2 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting these results are available for review and are provided with each shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	177 - 182 °C
Loss on Drying	≤ 0.5 %
Sulfated Ash	≤ 0.1 %

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