CAS 995-33-5 corresponds to n-butyl 4,4-di (tert butyl peroxide) pentanoate, which is a medium temperature organic peroxide initiator widely used in rubber vulcanization and polymer polymerization reactions.

Basic Information
-Chinese name: 4,4-di (tert butyl peroxide) pentanoic acid n-butyl ester
-English name: Butyl 4,4-bis (tert butyldioxy) Valerate
-Molecular formula: C ₁₇ H ∝₄ O ₆
-Molecular weight: 334.45
-EINECS number: 213-626-6
-Common aliases: Luperox 230XL, Trigonox 17, VAROX 118, initiator VA

Physicochemical properties
-Appearance: Grey white thick flake solid (industrial products are often diluted to a concentration of 40%)
-Density: 0.988 g/cm ³
-Melting point: 146 ° C
-Boiling point: 363.9 ° C (760 mmHg)
-Flash point: 151.9 ° C
-Refractive index: 1.4336 (20 ° C)

Safety and Usage
-Hazard category: Organic peroxides (Class 5.2), UN number 2140/2141, packaging grade II
-Main applications: vulcanizing agent for rubber (such as EPDM, NR), and initiator for polymerization of acrylic esters and vinyl monomers; Has excellent coking safety and is suitable for medium temperature vulcanization/polymerization processes (approximately 125-160 ° C)
-Storage precautions: Avoid light, low temperature (usually<30 ° C), keep away from heat sources/reducing agents/heavy metals, prevent impact and friction, and avoid self accelerated decomposition

This substance is a hazardous chemical and must be operated in accordance with MSDS and local regulatory requirements.

Products :

Butyl 4 4-di(tert-butylperoxy) valerate CAS 995-33-5
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