Perodox 123: tert-Butyl peroxy-3,5,5-trimethylhexanoate (68299-16-1) — Polymerization Initiator for Polymer Production, Electronics

August 12, 2026 3 min read





Perodox 123: tert-Butyl peroxy-3,5,5-trimethylhexanoate (68299-16-1) — Polymerization Initiator for Polymer Production, Electronics



Perodox 123: tert-Butyl peroxy-3,5,5-trimethylhexanoate (CAS 68299-16-1)

High-purity peroxyester for demanding electronic-grade polymer applications. Ultra-low metals content for semiconductor and display industry requirements.

Quick Facts

Trade Name Perodox 123
Chemical Name tert-Butyl peroxy-3,5,5-trimethylhexanoate
CAS Number 68299-16-1
Chemical Family Ester Peroxide
Brand Perodox
Function Category Polymerization Initiator
Product Line Organic Peroxides – Ester Peroxides
Applications Electronic-Grade Polymers, Semiconductor
Market Segment Polymer Production, Electronics
Physical Form Liquid
Decomposition Temperature 75-95°C
Active Oxygen Content
Molecular Weight

What Is tert-Butyl peroxy-3,5,5-trimethylhexanoate?

tert-Butyl peroxy-3,5,5-trimethylhexanoate is a ester peroxide supplied under the Perodox brand as part of the
Organic Peroxides – Ester Peroxides portfolio. High-purity peroxyester for demanding electronic-grade polymer applications. Ultra-low metals content for semiconductor and display industry requirements. As a polymerization initiator,
it is engineered for demanding Polymer Production, Electronics applications where consistency and purity are critical.

Key Properties & Specifications

  • Chemical family: Ester Peroxide
  • CAS number: 68299-16-1
  • Physical form: Liquid
  • Decomposition temperature: 75-95°C
  • Active oxygen content:
  • Molecular weight:

How It Works

As an organic peroxide, tert-Butyl peroxy-3,5,5-trimethylhexanoate decomposes by homolytic cleavage when heated near 75-95°C, generating free radicals. These radicals initiate the polymerization or crosslinking of unsaturated monomers (such as styrene, acrylates, vinyls and unsaturated polyester resins), making it a core radical initiator for thermoset and polymer manufacturing.

Primary Applications

Perodox 123 is applied across Electronic-Grade Polymers, Semiconductor. Typical market segments include Polymer Production, Electronics.
Its performance profile makes it a trusted choice for formulators who need reproducible,
high-purity raw materials.

Safety, Handling & Storage

Handle Perodox 123 in accordance with its Safety Data Sheet (SDS). Store in original,
sealed packaging away from heat, ignition sources and incompatible materials, within the
recommended temperature range. Personal protective equipment and adequate ventilation are
required. Always consult the current SDS and applicable local regulations before use.

Regulatory & Compliance

Do Sender Chem supplies tert-Butyl peroxy-3,5,5-trimethylhexanoate with full documentation and supports compliance with
international chemical regulations (including REACH where applicable). For controlled
precursor grades, supply is managed under know-your-customer and licensing procedures.

Why Source Perodox 123 from Do Sender Chem?

Do Sender Chem is a global specialty chemical manufacturer offering a broad, multi-language
catalog, consistent quality and responsive technical support. With localized content in 20
languages and worldwide delivery, we help polymer, rubber and specialty producers secure
reliable polymerization initiator supply.

Frequently Asked Questions

What is tert-Butyl peroxy-3,5,5-trimethylhexanoate used for?

tert-Butyl peroxy-3,5,5-trimethylhexanoate (trade name Perodox 123) is used as a Polymerization Initiator in Electronic-Grade Polymers, Semiconductor. It serves manufacturers in the Polymer Production, Electronics segments.

What is the CAS number of tert-Butyl peroxy-3,5,5-trimethylhexanoate?

The CAS Registry Number of tert-Butyl peroxy-3,5,5-trimethylhexanoate is 68299-16-1. The CAS number uniquely identifies the substance and is the standard reference used in safety data sheets, regulatory filings and procurement specifications.

Is tert-Butyl peroxy-3,5,5-trimethylhexanoate classified as Ester Peroxide?

Yes. tert-Butyl peroxy-3,5,5-trimethylhexanoate belongs to the Ester Peroxide chemical family and is marketed under the Perodox brand as part of the Organic Peroxides – Ester Peroxides product line.

How should Perodox 123 be stored and handled?

Perodox 123 should be stored according to its safety data sheet, away from heat, ignition sources and incompatible materials, in original sealed packaging under the recommended temperature range. Always consult the current SDS and local regulations before handling.

Which industries buy Perodox 123?

Perodox 123 is supplied to producers in the Polymer Production, Electronics industries that require reliable, high-purity Polymerization Initiator raw materials.

Related Products

Explore other ester peroxide and polymerization initiator products in our catalog, or contact
our team for formulation guidance.

References

  • CAS Registry Number: 68299-16-1 — tert-Butyl peroxy-3,5,5-trimethylhexanoate
  • Do Sender Chem product data sheet: Perodox 123


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