Photoinitiator 369 CAS 119313-12-1 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone Information
| CAS |
119313-12-1 |
| Molecular formula |
C23H30N2O2 |
| Molecular weight |
366.5 |
| EIENCS |
404-360-3 |
| Form |
powder to crystal |
| Melting point |
116-119 °C (lit.) |
| boling point |
528.8±50.0 °C(Predicted) |
| Density |
1.094±0.06 g/cm3(Predicted) |
| Solubility |
3240 in mg/100g standard fat at 20 ℃ |
| PKA |
7.04±0.50(Predicted) |
| Color |
Light orange to Yellow to Green |
| Storage temp |
|
What is Photoinitiator 369 CAS 119313-12-1 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone?
Chemical name: 2-benzyl-2 -(dimethylamino)-1-(4-morpholine phenyl) butanone
Molecular formula: C₂₃H₃₀N₂O₂
Molecular weight: 366.5 g/mol
CAS Number: 119313-12-1
Appearance: Light yellow to white crystalline powder (Some suppliers mark it as white powder)
Melting point: 110-119°C
Absorption wavelengths: 232-233nm and 323-324nm (in methanol solution), covering the range from UV-A to visible light
Type: α -aminolone cleavage type free radical photoinitiator, which splits by absorbing ultraviolet light to generate free radicals and trigger polymerization reactions.
Core advantages:
Efficient curing of dark systems: High UV absorption, especially suitable for colored systems such as blue and black, and remains effective even in formulations containing UV absorbers (such as SUNSORB1130).
Low odor & low migration: Compared with traditional initiators (such as 907), it has a smaller odor and lower migration, making it suitable for sensitive areas such as food packaging.
Synergistic effect: It is often compounded with thioxanone compounds (ITX, DETX) or acylphosphine oxides (TPO, 819) to enhance the curing speed and depth
Photoinitiator 369 CAS 119313-12-1 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone Use
Application scenarios
Printing inks: Offset printing ink (2-4%), screen printing ink (2-4% + 1-3% photoinitiator 184), used for PVC cards and packaging materials.
Electronics industry: PCB solder mask ink, photoresist, printed circuit board manufacturing.
Coatings and coatings: UV clear varnish for metal/plastic surfaces, automotive interior paint (1-4%).
Emerging field: LED-UV curing (low energy demand), suitable for light sources with wavelengths ranging from 365 to 395nm.
Compounding plan
Dark system: 369 + ITX/DETX (enhance light absorption efficiency).
High-speed curing: 369 + TPO/819 (strong penetration of thick film), such as the five-component initiation system in the patented formula (containing 369, TPO, and thioxanone).
Photoinitiator 369 CAS 119313-12-1 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone safety
Health risk:
Low skin irritation, but contact with the eyes may cause corneal damage.
Oral LD₅₀ in rats > 2000 mg/kg (low acute toxicity).
Environmental toxicity
Highly toxic to aquatic organisms (WGK Germany Level 2), entry into water bodies needs to be prevented.
Risk identification: R50/53 (Highly toxic to aquatic organisms).
Protective measures:
Wear impermeable gloves, goggles and dust masks when operating.
Store in a cool and dry place, away from light, sealed and kept away from oxidants.
