Photoinitiators ×
Specialty Additives
1-(Biphenyl-4-yl)-2-methyl-2-morpholinopropan-1-one
CAS 94576-68-8
Type I alpha-aminoketone photoinitiator for low-migration cure of pigmented UV coatings (Coatings & Construction) Used in UV inks and low-odor/low-migration print systems for packaging (Industrial Manufacturing) Initiates cure of pigmented UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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1-octane-1,2-dione 2-(O-benzoyloxime)
CAS 253585-83-0
High-sensitivity Type I oxime-ester photoinitiator for fast cure of pigmented and highly filled UV systems (Coatings & Construction) Workhorse initiator for color-filter resists, black-matrix and photoresist imaging in display/electronics (Industrial Manufacturing) Cures pigmented UV-curable plastics, photoresists and printing-plate resins (Plastics & Polymers)
Crosslinking / Curing
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1-octane-1,2-dione 2-(O-benzoyloxime)
CAS 253585-83-0
A high-sensitivity oxime-ester Type I photoinitiator that fragments under UV to generate radicals very efficiently, even in heavily pigmented or filled systems. It is a workhorse for imaging-grade applications such as color-filter and black-matrix resists in display manufacturing
Crosslinking / Curing
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Specialty Additives
2-(Dimethylamino)-2-(4-methylbenzyl)-1-butan-1-one
CAS 119344-86-4
A high-activity alpha-aminoketone Type I photoinitiator used to push cure through dark and heavily pigmented UV formulations. It cleaves under near-UV light to generate radicals, and its efficiency makes it a frequent choice where thicker or more opaque films would otherwise undercure beneath the surface
Crosslinking / Curing
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Specialty Additives
2-Ethylanthraquinone (2-EAQ)
CAS 84-51-5
Type II anthraquinone photoinitiator/sensitizer used with amine synergists for UV cure of coatings (Coatings & Construction) Sensitizer for UV inks and wood/paper overprint systems (Industrial Manufacturing) Sensitizes cure of UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Amines & Amides
2-Ethylhexyl 4-(dimethylamino)benzoate
CAS 21245-02-3
Liquid low-odor tertiary-amine co-initiator for Type II UV cure with reduced migration vs EDB (Coatings & Construction) Amine synergist of choice in low-migration UV/UV-LED packaging inks (Industrial Manufacturing) Accelerates oxygen-inhibited surface cure of UV adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
UV Protection
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Specialty Additives
2-Isopropylthioxanthone (ITX)
CAS 5495-84-1
Type II thioxanthone photoinitiator/sensitizer used with amine co-initiators for UV-curing pigmented coatings and inks (Coatings & Construction) Extends absorption to longer UV wavelengths for high-speed UV/UV-LED printing and overprint varnish (Industrial Manufacturing) Sensitizes through-cure of pigmented UV-cure plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2,2-Diethoxyacetophenone (DEAP)
CAS 6175-45-7
Liquid Type I acetophenone-derivative photoinitiator for cure of clear UV coatings (Coatings & Construction) Liquid initiator for UV inks, varnishes and adhesive primers (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2,4-Diethylthioxanthone (DETX)
CAS 82799-44-8
Type II diethylthioxanthone sensitizer paired with amine co-initiators for UV-curing pigmented inks and coatings (Coatings & Construction) Long-wavelength absorption improves through-cure and speed in UV/UV-LED printing and electronics (Industrial Manufacturing) Low-odor alternative to ITX for sensitizing pigmented UV-cure plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
4-Benzoyl-4′-methyldiphenyl sulfide (BMS)
CAS 83846-85-9
Type II thioether-benzophenone photoinitiator with extended absorption, used with amine synergists in UV coatings (Coatings & Construction) Improves cure speed and surface cure of UV/UV-LED inks and varnishes (Industrial Manufacturing) Sensitizes cure of UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
4-Benzoylbiphenyl (PBZ)
CAS 2128-93-0
Type II benzophenone-class photoinitiator with red-shifted absorption for high-throughput surface cure of UV coatings (Coatings & Construction) Used with amine synergists in UV/UV-LED inks (Industrial Manufacturing) Cures UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
4-Chlorobenzophenone (CBZ)
CAS 134-85-0
Type II chlorinated-benzophenone photoinitiator with shifted absorption for surface cure of UV coatings (Coatings & Construction) Used with amine synergists in UV inks and varnishes (Industrial Manufacturing) Cures UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
4-Methylbenzophenone (MBZ)
CAS 134-84-9
Type II benzophenone-derivative photoinitiator used with amine synergists for surface cure of UV coatings (Coatings & Construction) Often blended with benzophenone as a liquid-friendly eutectic for UV/UV-LED inks (Industrial Manufacturing) Cures UV-curable plastics and adhesives in amine-synergist systems (Plastics & Polymers)
Crosslinking / Curing
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Amines & Amides
4,4′-Bis(diethylamino)benzophenone
CAS 90-93-7
Aminobenzophenone sensitizer/co-initiator that extends Type II cure to longer wavelengths in UV coatings (Coatings & Construction) Photosensitizer for UV/UV-LED inks, often paired with thioxanthones (Industrial Manufacturing) Sensitizes cure of pigmented UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
BAPO Photoinitiator (Phenylbis(2,4,6-trimethylbenzoyl)phosphine Oxide)
CAS 162881-26-7
Type I bis-acylphosphine-oxide (BAPO) photoinitiator giving deep through-cure of pigmented and white UV coatings (Coatings & Construction) Long-wavelength absorption suits UV-LED and thick-film inks/electronics where surface initiators fail to cure depth (Industrial Manufacturing) Cures thick UV/EB adhesives, gel coats and composite layers with low yellowing…
Crosslinking / Curing
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Specialty Additives
Benzil dimethyl ketal (2,2-dimethoxy-2-phenylacetophenone)
CAS 24650-42-8
Highly reactive Type I benzil-ketal photoinitiator for fast cure of clear UV coatings and varnishes (Coatings & Construction) Used in UV inks and high-speed line curing (Industrial Manufacturing) Cures clear UV-curable adhesives, composites and unsaturated-polyester systems (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Benzophenone (BP)
CAS 119-61-9
Classic Type II hydrogen-abstraction photoinitiator, used with amine synergists for surface cure of UV coatings and varnishes (Coatings & Construction) Low-cost initiator for UV/UV-LED inks and overprint varnish (Industrial Manufacturing) Cures UV-curable plastics and adhesives in amine-synergist systems (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
Blend of 2-ethyl 2-oxo-2-phenylacetate and 2-(2-hydroxyethoxy)ethyl 2-oxo-2-phenylacetate
CAS 211510-16-6
Difunctional, low-migration/low-odor liquid alpha-ketoester photoinitiator blend for clear UV coatings and varnishes (Coatings & Construction) Designed for low-migration UV/UV-LED packaging inks and overprint varnish (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics with reduced extractables (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Carbazole Oxime-Ester Photoinitiator
CAS 478556-66-0
This is a high-sensitivity Type I oxime-ester photoinitiator built on a carbazole chromophore. Under UV exposure it fragments to generate free radicals that initiate polymerization, and its high light absorptivity lets it drive cure in deeply pigmented and heavily filled formulations where conventional photoinitiators stall.…
Crosslinking / Curing
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Specialty Additives
Ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate
CAS 84434-11-7
Liquid Type I acylphosphinate photoinitiator for low-yellowing, easy-handling cure of clear and white UV coatings (Coatings & Construction) Long-wavelength liquid initiator ideal for UV-LED inks and digital printing (Industrial Manufacturing) Cures UV-curable adhesives, composites and resins with good depth cure (Plastics & Polymers)
Crosslinking / Curing
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Amines & Amides
Ethyl 4-(dimethylamino)benzoate
CAS 10287-53-3
Tertiary-amine co-initiator/synergist that boosts Type II (benzophenone/thioxanthone) cure and overcomes oxygen inhibition in UV coatings (Coatings & Construction) Standard amine synergist in UV/UV-LED inks and overprint varnishes (Industrial Manufacturing) Accelerates surface cure of UV-curable adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
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Amines & Amides
Isoamyl 4-(dimethylamino)benzoate
CAS 21245-01-2
Liquid tertiary-amine co-initiator/synergist for Type II UV-cure coatings (Coatings & Construction) Amine synergist for UV inks and overprint varnishes with good solubility (Industrial Manufacturing) Boosts surface cure of UV-curable adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Methyl 2-benzoylbenzoate (OMBB)
CAS 606-28-0
Liquid Type II benzophenone-derivative co-initiator/synergist for low-migration surface cure of UV coatings (Coatings & Construction) Liquid initiator improving solubility in UV/UV-LED inks and varnishes (Industrial Manufacturing) Cures UV-curable plastics and adhesives in amine-synergist systems (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Methyl benzoylformate (MBF)
CAS 15206-55-0
Liquid Type I alpha-ketoester photoinitiator for low-yellowing, low-odor cure of clear UV coatings (Coatings & Construction) Improves surface cure and reduces odor in UV/UV-LED inks and varnishes (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics with easy formulation handling (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Phenylglyoxylate Ester Photoinitiator Blend
CAS 211510-16-6
A low-odor liquid photoinitiator built from phenylglyoxylate esters, used to cure clear UV coatings and varnishes. It contributes both surface and through cure and is valued where low odor and low migration matter, as in overprint varnishes and packaging-related inks
Crosslinking / Curing
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Specialty Additives
Photoinitiator 1173 (2-Hydroxy-2-methyl-1-phenylpropan-1-one)
CAS 7473-98-5
Liquid Type I alpha-hydroxyketone photoinitiator for fast, low-yellowing surface cure of clear UV coatings (Coatings & Construction) Highly compatible liquid for UV/UV-LED clear inks and overprint varnishes (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics; common blend partner with TPO (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Photoinitiator 184 (1-Hydroxycyclohexyl Phenyl Ketone)
CAS 947-19-3
Type I alpha-hydroxyketone photoinitiator giving low-yellowing cure of clear UV coatings, lacquers and overprint varnish (Coatings & Construction) Standard initiator for clear UV/UV-LED inks and high-gloss line coatings (Industrial Manufacturing) Cures clear UV-curable adhesives, hardcoats and plastics (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Photoinitiator 369 (2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone)
CAS 119313-12-1
High-activity Type I alpha-aminoketone photoinitiator for fast through-cure of pigmented and dark UV coatings (Coatings & Construction) Strong cure of black/pigmented UV inks, solder masks and screen inks (Industrial Manufacturing) Cures pigmented UV-curable plastics, adhesives and photoresists (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Photoinitiator 369 (2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone)
CAS 119313-12-1
An alpha-aminoketone Type I photoinitiator that fragments under UV light to start free-radical cure of acrylate and other unsaturated systems. Its near-UV absorption makes it effective in white and pigmented formulations, where it drives cure down through the film rather than only at the surface
Crosslinking / Curing
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Specialty Additives
Photoinitiator 907 (2-Methyl-4′-(methylthio)-2-morpholinopropiophenone)
CAS 71868-10-5
Type I alpha-aminoketone photoinitiator giving strong through-cure of white and pigmented UV coatings (Coatings & Construction) Workhorse for pigmented screen and UV inks where surface-only initiators under-cure (Industrial Manufacturing) Cures pigmented UV-curable plastics, adhesives and solder masks (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Photoinitiator 907 (2-Methyl-4′-(methylthio)-2-morpholinopropiophenone)
CAS 71868-10-5
2-Methyl-1--2-morpholinopropan-1-one (MMMP) is a Type I alpha-aminoketone photoinitiator. Under UV exposure it cleaves to form radicals that start the polymerization of acrylate and other free-radical UV systems, and its absorption profile makes it especially effective at curing white and pigmented films from within
Crosslinking / Curing
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Specialty Additives
Titanocene Photoinitiator (bis(eta5-cyclopentadienyl)bistitanium)
CAS 125051-32-3
A titanocene-based photoinitiator that absorbs well into the visible range, letting it cure systems that block ordinary UV initiators. The orange solid generates radicals across roughly the violet-to-blue region, so it can drive cure through thick sections and through pigments that screen out shorter wavelengths
Crosslinking / Curing
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Specialty Additives
TPO Photoinitiator (Diphenyl(2,4,6-trimethylbenzoyl)phosphine Oxide)
CAS 75980-60-8
Type I acylphosphine-oxide photoinitiator tuned for UV-LED (~380-420 nm) curing of clear and white-pigmented coatings and inks (Coatings & Construction) Long-wavelength absorption drives surface and through-cure of opaque/thick UV-LED layers in printing and electronics (Industrial Manufacturing) Low-yellowing fast cure of UV-curable adhesives, composites and 3D-print…
Crosslinking / Curing
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