Photoinitiators
Photoinitiator 2959
2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone
The water-compatible α-hydroxy ketone for aqueous and biomedical UV systems.
Product Description
Photoinitiator 2959 is an α-hydroxy ketone bearing a terminal hydroxyl group that grants real solubility in water and water-miscible monomers — around 1–2% in water at room temperature, far above 184 or 1173. This makes it the standard initiator for aqueous UV-curable systems.
Its low odor, low volatility and long history in biomedical hydrogel literature also make it a natural choice for cosmetic gels, dental materials and bio-printing resins. Typical loadings are 1–4 wt%.
Key Features
- Genuine water solubility for aqueous systems
- Low odor and low volatility
- Well documented for hydrogel and biomedical uses
- Efficient cure under both mercury and UV LED
Applications
- Aqueous UV-curable coatings and inks
- Hydrogels and cosmetic gels
- Bio-printing and biomedical resins
- Waterborne wood coatings
- Hydrogel electronics and sensors
Specifications
| CAS No. | 106797-53-9 |
|---|---|
| Molecular Formula | C12H16O4 |
| Molecular Weight | 224.25 |
| Appearance | White to off-white powder |
| Assay (HPLC) | ≥ 98.0% |
| Melting Point | 86 – 93 °C |
| Loss on Drying | ≤ 0.5% |
Packaging & Storage
25 kg fiber drum with PE liner, 1 kg aluminum-foil sample bag. Store cool, dry and protected from light; shelf life 24 months.
Related Products
![Photoinitiator KIP 160 — 2-Hydroxy-1-[4-[4-(2-hydroxy-2-methylpropanoyl)benzyl]phenyl]-2-methylpropan-1-one](/assets/images/product-pi-kip160.jpg)
Photoinitiators
Photoinitiator KIP 160
2-Hydroxy-1-[4-[4-(2-hydroxy-2-methylpropanoyl)benzyl]phenyl]-2-methylpropan-1-one
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