中固化学® CAT-551 is a 阳离子光引发剂 with high photoinitiator activity, good surface drying, no yellowing, no migration, and no odor. It has a certain absorption at 365/385/395nm and can be used for LED curing.
Compared with the ITX structure in 中固化学® CAT-550, the DETX structure in 中固化学® CAT-551 is more environmentally friendly and has lower biological toxicity. It can be used in food packaging to replace Omnicat 550.
中固化学®CAT-551
Synonym: 10-(4-Biphenylyl)-2,4-Diethylthioxanthone-10- sulfonium hexafluorophosphate
CAS No: 591773-90-9
Molecular Formula: C29H25OS.PF6
Molecular Structure:
中固化学® CAT-551 is a 阳离子光引发剂 with high photoinitiator activity, good surface drying, no yellowing, no migration, and no odor. It has a certain absorption at 365/385/395nm and can be used for LED curing.
Compared with the ITX structure in 中固化学® CAT-550, the DETX structure in 中固化学® CAT-551 is more environmentally friendly and has lower biological toxicity. It can be used in food packaging to replace Omnicat 550.
| Appearance | Yellow crystal powder |
| Purity | ≥98% |
| Melting point | 190-200℃ |
| Volatile Matter | ≤0.5% |
Cationic printing inks and overprint varnishes for special applications such as can coatings, coil coatings and pharmaceutical packaging.
1KG/BAG
Store in a dry, clean, ventilated warehouse.
Avoid exposure to light and heat.
Be careful to prevent leakage, rain and sun during transportation.
