![Photoinitiator 1001M (1-[4-(4-Benzoylphenylthio)phenyl]-2-tosyl-2-methyl-1-propanone)](/assets/images/product-pi-1001m.jpg)
Photoinitiators
Photoinitiator 1001M
1-[4-(4-Benzoylphenylthio)phenyl]-2-tosyl-2-methyl-1-propanone
Macromolecular benzophenone-acetophenone hybrid for ultra-low-migration inks.
Product Description
1001M combines a benzophenone chromophore with an acetophenone cleavage center in one effectively macromolecular molecule. Photolysis produces high-molecular-weight radicals that stay in the film, minimizing extractables — directly addressing migration limits in food-contact packaging.
It works as a self-sufficient Type II initiator (the tosyl group serves as internal hydrogen donor) and can replace BP/amine pairs in compliant ink systems. Typical loadings are 2–5 wt%.
Key Features
- Effectively macromolecular — minimal migration
- Internal hydrogen donor — no separate amine needed
- Targets Swiss Ordinance / Nestlé compliance
- White powder, easy incorporation
Applications
- Food-packaging UV inks
- Low-migration overprint varnishes
- Paper and board coatings
- Compliant flexible-packaging systems
- Low-odor industrial coatings
Specifications
| CAS No. | 272460-97-6 |
|---|---|
| Molecular Formula | C30H26O4S2 |
| Molecular Weight | 514.65 |
| Appearance | White powder |
| Assay (HPLC) | ≥ 98.0% |
| Loss on Drying | ≤ 0.5% |
Packaging & Storage
25 kg fiber drum with PE liner. Store cool, dry and protected from light; shelf life 24 months.
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