Description

Butyl 4,4-Bis(tert-Butyldioxy)Valerate is a specialized organic peroxide ester, a high-purity chemical intermediate with the CAS registry number 995-33-5. This compound serves as a critical free-radical initiator and cross-linking agent, valued for its controlled decomposition profile and efficiency in polymerization processes. It is essential for manufacturers in the polymer, specialty chemical, and advanced materials sectors seeking to enhance product performance and process reliability.

Application

• Polymerization Initiator: A key component for initiating the free-radical polymerization of monomers like styrene, vinyl acetate, and acrylates.
• Cross-linking Agent: Used to create three-dimensional polymer networks, improving the thermal and mechanical properties of resins, elastomers, and adhesives.
• Curing Agent for Unsaturated Polyester Resins (UPR): Facilitates the room-temperature or elevated-temperature curing of UPRs used in fiberglass composites, coatings, and molding compounds.
• Synthesis Intermediate: Employed in organic synthesis to introduce peroxide functionalities or as a building block for more complex molecules in pharmaceutical and agrochemical research.
• Modifier for Polymer Properties: Used to control molecular weight and branching during polymer production, tailoring final material characteristics.

Basic Information

Product Name	Butyl 4,4-Bis(tert-Butyldioxy)Valerate
CAS No.	995-33-5
Molecular Formula	C₁₇H₃₄O₆
Molecular Weight	334.45 g/mol
Synonyms	Butyl 4,4-Di(tert-butylperoxy)valerate; Valeric acid, 4,4-bis[(1,1-dimethylethyl)dioxy]-, butyl ester; 4,4-Bis(tert-butyldioxy)valeric acid butyl ester; DTBPV; tert-Butyl peroxy ester; Peroxide initiator 995-33-5
EINECS	Contact for details

Quality Control

Our production of Butyl 4,4-Bis(tert-Butyldioxy)Valerate adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like HPLC and titration to ensure high purity and consistent active oxygen content, critical for predictable performance as an initiator. Certificates of Analysis (COA) detailing assay, identity, and impurity profiles are provided to guarantee supply reliability and technical compliance for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Keep separate from reducing agents, strong acids, bases, and combustible materials. Recommended storage temperature is 15-25°C. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Active Oxygen)	≥ 95.0%
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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