AZO Initiators

A comprehensive portfolio of high-purity, high-activity azo initiators serving as essential free-radical initiators for polymer synthesis, acrylic resin production, and advanced material manufacturing worldwide.

Explore Our AZO Products

Shandong Do Sender Chemicals Co., Ltd. has successfully broken through long-standing technical monopolies and bottlenecks in azo initiator technology. We deliver high-purity, high-activity AZO initiator products designed for polymer synthesis and acrylic resin production. Our AZO product line features controllable decomposition temperatures, exceptionally low residual monomer levels, and consistent batch-to-batch quality — making them the preferred choice for demanding polymerization processes around the globe.

Why Choose Our AZO Initiators

Engineered for reliability and performance in the most demanding industrial applications.

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High Purity

Industry-leading purity levels (≥99%) ensure reliable and predictable initiation kinetics for consistent polymer quality.

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Controllable Decomposition

Precisely engineered decomposition temperatures from ~51°C to ~66°C for tailored process integration.

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Low Residual Monomer

Minimal by-product formation ensures cleaner end-polymer properties and reduced post-processing requirements.

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Global Supply Chain

Reliable worldwide delivery to over 80 countries with consistent quality and comprehensive logistics support.

Key Applications

AZO initiators from Do Sender Chem are trusted across diverse polymerization and resin production processes.

⚛Bulk Polymerization ⚛Solution Polymerization ⚛Suspension Polymerization ⚛Emulsion Polymerization 🎨Acrylic Resin Production 🎨High-Solids Coatings 🎨Water-Borne Systems 🛠Styrene Polymerization 🛠Acrylate/Methacrylate 🛠Vinyl Acetate Processing 🏭Automotive Coatings 🏭Industrial Coatings

Featured Products

Explore our comprehensive range of azo initiators, engineered for diverse polymerization needs.

AZO Initiator

AIBN

CAS No. 78-67-1

Azobisisobutyronitrile (AIBN). The industry-standard azo initiator for bulk, solution, and suspension polymerization. A white crystalline powder with a reliable 10-hour half-life at 65°C, providing consistent radical flux for predictable polymer architectures and narrow molecular weight distributions.

Purity ≥ 99% M.P. 102–105°C White crystalline 20 kg drums
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AZO Initiator

ABVN

CAS No. 13472-08-7

Azobisisovaleronitrile (ABVN). A high-activity azo initiator with a lower decomposition temperature than AIBN, ideal for low-to-medium temperature polymerization processes. Delivers efficient initiation while minimizing thermal stress on heat-sensitive monomers.

Purity ≥ 98% 10h t½ ~51°C Crystalline solid 20 kg drums
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AZO Initiator

AIBME

CAS No. 2589-57-3

Dimethyl azobisisobutyrate (AIBME). A liquid azo initiator offering exceptional solubility and handling convenience. Its nitrile-free decomposition profile makes it an environmentally preferred alternative for modern resin and coating formulations.

Purity ≥ 98% Liquid at RT Nitrile-free 25 kg HDPE
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Custom AZO Initiator Solutions

Beyond our standard portfolio, we offer tailored azo initiator development to meet your unique process requirements.

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Custom Synthesis

Bespoke azo compounds engineered to your target decomposition temperature range. Our R&D team works closely with your process engineers to develop initiators matched precisely to your reactor conditions.

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Formulation & Scale-Up

Pre-formulated solutions, pastes, and blends optimized for your production line. From lab-scale trials to full commercial production, we provide consistent quality and technical support throughout the scale-up journey.

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Technical Specifications

Key physical and chemical properties of our standard AZO initiator products.

Property AIBN ABVN AIBME
Chemical Name2,2′-Azobis(isobutyronitrile)2,2′-Azobis(isovaleronitrile)Dimethyl 2,2′-azobis(isobutyrate)
CAS Number78-67-113472-08-72589-57-3
Molecular FormulaC8H12N4C10H16N4C10H16N2O4
Molecular Weight164.21 g/mol192.26 g/mol228.25 g/mol
AppearanceWhite crystalline powderWhite to off-white crystalline solidColorless to pale yellow liquid
Purity (min.)≥ 99.0%≥ 98.0%≥ 98.0%
Melting Point102–105 °C48–52 °CLiquid at 25 °C
10-Hour Half-Life Temp.~65 °C (toluene)~51 °C (toluene)~66 °C (toluene)
Storage Recommendation< 25 °C, dry, dark< 10 °C, dry, dark< 25 °C, dry, dark
Packaging20 kg fiber drums20 kg fiber drums25 kg HDPE drums

Download Documents

Access technical documentation, safety data sheets, and product brochures for our azo initiator portfolio.

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AZO Initiators Product Brochure

Complete overview of our azo initiator portfolio with application guidelines and technical highlights.

BrochureEnglishPDF | 2.4 MB
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Safety of Organic Peroxides & AZO Initiators

Comprehensive guidelines on safe handling, storage, transportation, and emergency response.

BrochureEnglishPDF | 1.2 MB
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AIBN Technical Data Sheet

Detailed physical, chemical, and performance specifications for AIBN (CAS 78-67-1).

TDSEnglishPDF | 0.8 MB
Download
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ABVN Technical Data Sheet

Detailed physical, chemical, and performance specifications for ABVN (CAS 13472-08-7).

TDSEnglishPDF | 0.7 MB
Download
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AIBME Technical Data Sheet

Detailed physical, chemical, and performance specifications for AIBME (CAS 2589-57-3).

TDSEnglishPDF | 0.7 MB
Download
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AIBN Safety Data Sheet (SDS)

Regulatory-compliant safety data sheet for safe handling and emergency procedures.

SDSEnglishPDF | 0.3 MB
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Quality Assurance & Safety First

Every batch of azo initiator produced at our facility undergoes rigorous quality testing to ensure consistent performance and the highest safety standards.

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AZO initiators are thermally sensitive materials requiring proper storage and handling. Our products are supplied with comprehensive safety documentation and are backed by our 24/7 technical support team. We recommend storing products in cool, dry, well-ventilated areas away from direct sunlight and heat sources. Always consult the Safety Data Sheet (SDS) before handling. For technical guidance on safe handling, storage, or emergency response procedures, our global team is available around the clock.

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Need Technical Support?

Our team of experienced chemists and engineers is ready to assist you with product selection, process optimization, and custom formulation requirements. Let us help you find the right azo initiator solution for your application.

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