Description

2-Benzyl-2-(dimethylamino)-1-(4-(morpholin-4-yl)phenyl)butan-1-one (CAS No. 119313-12-1), also known as Irgacure 369, is a highly efficient Type I photoinitiator widely used in UV-curable applications. With the molecular formula C₂₃H₃₀N₂O₂, this compound exhibits excellent absorption properties in the UV-A range (320-390 nm), making it ideal for initiating free-radical polymerization in coatings, inks, adhesives, and 3D printing resins. Its unique chemical structure ensures rapid curing, low yellowing, and superior surface hardness. Irgacure 369 is particularly valued for its compatibility with acrylate and methacrylate systems, offering high reactivity and minimal odor. Packaged under inert conditions to ensure stability, this photoinitiator is a must-have for researchers and industrial chemists working with advanced photopolymer formulations.

Properties

• CAS Number: 119313-12-1
• Complexity: 461
• IUPAC Name: 2-benzyl-2-(dimethylamino)-1-(4-morpholinophenyl)butan-1-one
• InChI: InChI=1S/C23H30N2O2/c1-4-23(24(2)3,18-19-8-6-5-7-9-19)22(26)20-10-12-21(13-11-20)25-14-16-27-17-15-25/h5-13H,4,14-18H2,1-3H3
• InChI Key: UHFFVFAKEGKNAQ-UHFFFAOYSA-N
• Exact Mass: 366.230728204
• Molecular Formula: C23H30N2O2
• Molecular Weight: 366.5
• SMILES: CCC(CC1=CC=CC=C1)(C(=O)C2=CC=C(C=C2)N3CCOCC3)N(C)C
• Topological: 32.8
• Monoisotopic Mass: 366.230728204
• Physical Description: NKRA; Pellets or Large Crystals, Liquid; Liquid; Dry Powder
• Synonyms: 119313-12-1, Irgacure 369, 1-Butanone, 2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-2-(phenylmethyl)-, 413O6RKS6B, PHOTOINITIATOR 369, 2-Benzyl-2-(dimethylamino)-1-(4-(morpholin-4-yl)phenyl)butan-1-one, 2-Benzyl-2-dimethylamino-4′-morpholinobutyrophenone, EC 404-360-3, 1-Butanone, 2-(dimethylamino)-1-(4-(4-morpholinyl)phenyl)-2-(phenylmethyl)-, 2-benzyl-2-n,n-dimethylamino-1-(4-morpholinophenyl)-1-butanone, J261.950D, 2-Benzyl-2-(dimethylamino)-1-[4-(morpholin-4-yl)phenyl]butan-1-one, 2-(DIMETHYLAMINO)-1-(4-MORPHOLINOPHENYL)-2-BENZYL-1-BUTANONE, .ALPHA.-BENZYL-.ALPHA.-(DIMETHYLAMINO)-4-MORPHOLINOBUTYROPHENONE, alpha-benzyl-alpha-(dimethylamino)-4-morpholinobutyrophenone, 404-360-3, 2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)-1-butanone, 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone, 2-benzyl-2-(dimethylamino)-1-(4-morpholinophenyl)butan-1-one, DTXSID5044786, MFCD00191775, 2-benzyl-2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)butan-1-one, 2-Benzyl-2-(dimethylamino)-1-[4-(4-morpholinyl)phenyl]-1-butanone, C23H30N2O2, UNII-413O6RKS6B, photoinitiator369, IRGACURE369, SCHEMBL35868, SCHEMBL8664036, CHEMBL3187611, DTXCID3024786, 2-benzyl-2-(dimethylamino)-1-(4-morpholinophenyl)-1-butanone, Tox21_301707, 2-(Dimethylamino)-1-[4-(4-morpholinyl)phenyl]-2-(phenylmethyl)-1-butanone, AKOS015901469, CS-W009775, 2-Benzyl-2-(dimethylamino)-4 inverted exclamation marka-morpholinobutyrophenone, NCGC00256142-01, DS-12208, ST058401, SY052666, B3914, CAS-119313-12-1, NS00006098, O10663, Q27258386, 2-benzyl-2-dimethylamino-1 -(4morpholinophenyl)butan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one, 2-Benzyl-2-(dimethylamino)-4′-morpholinobutyrophenone, 97%, 2-BENZYL-2-(DIMETHYLAMINO)-4-MORPHOLINO-BUTYROPHENON, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl) -1-butanone, 2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butan-1-one, 2-(dimethylamino)-1-(4-morpholin-4-ylphenyl)-2-benzylbutan-1-one, 2-Benzyl-2-(dimethylamino)-1-[4-(morpholino)phenyl]-1-butanone, Irgacure 369 (2-Benzyl-2-(dimethylamino)-1-[4-(morpholinyl) phenyl)]-1-butanone)

Application

Irgacure 369 is primarily used as a photoinitiator in UV-curable coatings, inks, and adhesives due to its high reactivity and broad UV absorption range. It is particularly effective in clear formulations where low yellowing and excellent surface cure are required. This compound is also employed in 3D printing resins to achieve fast polymerization and high-resolution prints. Its compatibility with various monomers and oligomers makes it a versatile choice for industrial and research applications.

Safety and Hazards

GHS Hazard Statements

• H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
• H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
• H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
• H411: Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P203, P264+P265, P273, P280, P305+P354+P338, P317, P318, P391, P405, and P501

Hazard Classes and Categories

• Repr. 1B (35.3%)
• Repr. 1B (59.5%)
• Aquatic Acute 1 (100%)
• Aquatic Chronic 1 (100%)

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