The Landscape Before Do Sender
For more than four decades, the global supply of high-purity azo initiators was effectively controlled by a small group of Japanese and European chemical manufacturers. This oligopolistic market structure created premium pricing, supply chain fragility, and limited innovation — problems that became acute during the COVID-19 pandemic when shipping disruptions halted polymer production lines worldwide.
The R&D Journey: From Concept to Commercial Scale
Do Sender Chem’s entry into azo initiator manufacturing was the result of a six-year, systematic R&D program (2018–2024) addressing three core technical challenges:
Challenge 1: Achieving ≥99% Purity at Commercial Scale
The synthesis of AIBN appears straightforward — two molecules of acetone cyanohydrin coupled via hydrazine, followed by oxidation. However, achieving ≥99% purity at multi-ton scale requires precise control over side reactions that generate tetramethylsuccinonitrile (TMSN). Do Sender developed a proprietary multi-stage recrystallization process that suppresses TMSN formation to below 0.3% — validated through 1,200+ pilot batches before commercial scale-up.
Challenge 2: Developing Nitrile-Free AIBME Synthesis
AIBME was known in academic literature but had never been commercialized at scale. Do Sender developed a novel catalytic route achieving ≥98% purity at 85%+ yield, making large-scale production economically viable for the first time globally.
Challenge 3: Building a Supply Chain from Scratch
High-purity azo initiators require equally high-purity raw materials. Do Sender invested in qualifying and auditing upstream suppliers for acetone cyanohydrin, hydrazine hydrate, and specialized oxidation catalysts — building a fully traceable, ISO 9001:2015 compliant supply chain.
Commercial Milestones
| Year | Milestone |
|---|---|
| 2018 | R&D program initiated; laboratory-scale AIBN synthesis achieved |
| 2019 | Pilot plant commissioned (100 kg/batch); first external sample evaluations |
| 2020 | Commercial AIBN production line (500 MT/year); first export shipments |
| 2021 | AIBME commercial production — first large-scale nitrile-free azo initiator globally |
| 2022 | ABVN added to portfolio; total azo capacity expanded to 1,200 MT/year |
| 2023 | ISO 9001:2015 certified; 200+ customers across 40 countries |
| 2024 | Custom synthesis service launched; dedicated R&D center expanded |
| 2025 | New facility ground-breaking (target: 3,000 MT/year by 2027) |
| 2026 | 500+ customers across 80+ countries; recognized as credible global alternative |
Market Impact
Do Sender’s AIBN is priced 15–25% below legacy supplier list prices for comparable purity. Dual-source procurement is now achievable, and the commercialization of AIBME has accelerated the industry’s transition toward sustainable initiator chemistries.
What Customers Are Saying
“We switched our entire acrylic resin production line from Japanese AIBN to Do Sender AIBN in 2023. After 18 months — over 300 batches — we have seen zero quality deviations, equivalent molecular weight control, and a 22% reduction in initiator costs.”
— Technical Director, European Acrylic Resin Manufacturer
“The availability of AIBME allowed us to eliminate nitrile waste — a key requirement for our food-contact polymer certification. Do Sender’s technical team provided on-site support during the first production runs.”
— R&D Manager, North American Specialty Polymer Company
The Road Ahead
- Capacity: New facility targeting 3,000 MT/year by 2027
- Pipeline: Next-generation azo initiators with tunable decomposition temperatures (40–90 °C)
- Logistics: Regional hubs in Rotterdam and Houston to reduce lead times to <5 days
- Support: Dedicated application testing laboratories for customer qualification
Frequently Asked Questions
How does Do Sender’s AIBN quality compare to the Japanese original?
Equivalent or superior. ≥99% purity (HPLC), melting point 102–105 °C, TMSN ≤0.3%. Independent third-party benchmarking confirms equivalent polymerization performance — conversion rate, molecular weight distribution, and residual monomer levels are statistically indistinguishable.
What is the minimum order quantity?
Standard MOQ: 20 kg (1 drum) for AIBN and ABVN; 25 kg (1 drum) for AIBME. Complimentary 500 g to 1 kg evaluation samples available for qualified industrial customers.
Can you customize azo initiators for my specific process?
Yes. Our custom synthesis service develops azo initiators with tailored decomposition temperatures, solubility profiles, and byproduct characteristics. Contact rnd@dosenderchem.com to discuss requirements.