Photoinitiators

Specialty Additives

1-(Biphenyl-4-yl)-2-methyl-2-morpholinopropan-1-one

CAS 94576-68-8

A Type I photoinitiator with biphenyl chromophore for efficient UV cure of pigmented coatings, inks, and thicker films.

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Specialty Additives

1-octane-1,2-dione 2-(O-benzoyloxime)

CAS 253585-83-0

An oxime ester photoinitiator that delivers fast UV cure and high resolution in pigmented photoresists, color filters, and display manufacturing applications.

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Specialty Additives

2-(Dimethylamino)-2-(4-methylbenzyl)-1-butan-1-one

CAS 119344-86-4

A pale-yellow morpholino alpha-aminoketone photoinitiator delivering high UV cure activity for pigmented inks, imaging systems, and colored films.

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Specialty Additives

2-Ethylanthraquinone (2-EAQ)

CAS 84-51-5

A pale-yellow anthraquinone photoinitiator that abstracts hydrogen from amines under UV light for curing coatings, inks, and adhesives.

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Amines & Amides

2-Ethylhexyl 4-(dimethylamino)benzoate

CAS 21245-02-3

A clear liquid amine synergist and hydrogen donor that accelerates surface cure and reduces oxygen inhibition in UV-cured coatings and inks.

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Specialty Additives

2-Isopropylthioxanthone (ITX)

CAS 5495-84-1

A yellow thioxanthone photoinitiator that absorbs at longer UV wavelengths to cure pigmented inks, coatings.

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Specialty Additives

2,2-Diethoxyacetophenone (DEAP)

CAS 6175-45-7

A liquid Type I photoinitiator that cleaves under UV to initiate radical polymerization in clear coatings, adhesives, and printing applications.

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Specialty Additives

2,4-Diethylthioxanthone (DETX)

CAS 82799-44-8

A yellow thioxanthone photoinitiator that absorbs long-wave UV to cure pigmented inks and coatings when paired with an amine synergist.

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Specialty Additives

4-Benzoyl-4′-methyldiphenyl sulfide (BMS)

CAS 83846-85-9

A pale solid benzophenone photoinitiator with thioether substitution for red-shifted UV absorption.

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Specialty Additives

4-Benzoylbiphenyl (PBZ)

CAS 2128-93-0

A crystalline benzophenone-type photoinitiator with extended conjugation for red-shifted UV absorption, used in surface-cure coatings with amine synergists.

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Specialty Additives

4-Chlorobenzophenone (CBZ)

CAS 134-85-0

A chloro-substituted benzophenone photoinitiator that accelerates UV surface cure of clear coatings and inks when paired with amine co-initiators.

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Specialty Additives

4-Methylbenzophenone (MBZ)

CAS 134-84-9

A low-volatility Type II benzophenone photoinitiator used with amine synergists for UV surface cure of coatings and inks.

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Amines & Amides

4,4′-Bis(diethylamino)benzophenone

CAS 90-93-7

An electron-rich aminoketone photosensitizer that amplifies primary photoinitiators and extends visible-light response in UV-cured coatings, inks.

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Specialty Additives

BAPO Photoinitiator (Phenylbis(2,4,6-trimethylbenzoyl)phosphine Oxide)

CAS 162881-26-7

A bis-acylphosphine oxide photoinitiator generating high radical efficiency for deep through-cure in pigmented UV/LED coatings, inks, and thick castings.

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Specialty Additives

Benzil dimethyl ketal (2,2-dimethoxy-2-phenylacetophenone)

CAS 24650-42-8

A white crystalline Type I photoinitiator that cleaves under UV to generate radicals for fast, deep cure of clear coatings, adhesives, and UV systems.

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Specialty Additives

Benzophenone (BP)

CAS 119-61-9

A white crystalline ketone photoinitiator that abstracts hydrogen from amines to initiate UV surface cure in coatings, inks, and adhesives.

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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

A liquid phenylglyoxylate ester blend providing low-odor, low-migration UV surface cure for clear coatings and inks without requiring amines.

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Specialty Additives

Carbazole Oxime-Ester Photoinitiator

CAS 478556-66-0

A yellow carbazole oxime-ester photoinitiator offering high UV sensitivity for pigmented photoresists, color filters, and black-matrix display applications.

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Specialty Additives

Ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate

CAS 84434-11-7

A liquid acylphosphine-oxide photoinitiator that cleaves under near-UV/violet light for fast deep cure in coatings, inks.

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Amines & Amides

Ethyl 4-(dimethylamino)benzoate

CAS 10287-53-3

An off-white crystalline aminobenzoate amine synergist that accelerates UV cure and reduces oxygen inhibition in coatings and inks when paired.

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Amines & Amides

Isoamyl 4-(dimethylamino)benzoate

CAS 21245-01-2

An aminobenzoate ester synergist that accelerates surface cure and reduces oxygen inhibition when used with Type II photoinitiators in UV-cured.

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Specialty Additives

Methyl 2-benzoylbenzoate (OMBB)

CAS 606-28-0

A liquid benzophenone-type photoinitiator offering improved solubility and low volatility for UV-cured coatings, varnishes.

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Specialty Additives

Methyl benzoylformate (MBF)

CAS 15206-55-0

A liquid phenylglyoxylate photoinitiator that cleaves under UV light for low-odor surface cure of coatings, inks, and overprint systems.

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Specialty Additives

Phenylglyoxylate Ester Photoinitiator Blend

CAS 211510-16-6

A liquid phenylglyoxylate ester blend photoinitiator delivering low-odor, low-migration surface cure for clear UV coatings and inks with minimal extractables.

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Specialty Additives

Photoinitiator 1173 (2-Hydroxy-2-methyl-1-phenylpropan-1-one)

CAS 7473-98-5

A liquid α-hydroxyketone photoinitiator that cleaves under UV light to enable fast, low-yellowing surface cure of coatings, inks, and adhesives.

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Specialty Additives

Photoinitiator 184 (1-Hydroxycyclohexyl Phenyl Ketone)

CAS 947-19-3

A Type I α-hydroxyketone photoinitiator that cleaves under UV light to initiate radical cure in clear coatings, overprint varnishes.

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Specialty Additives

Photoinitiator 369 (2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)butanone)

CAS 119313-12-1

A pale powder Type I α-aminoketone photoinitiator for pigmented UV inks, coatings, color filters, and photoresists requiring strong long-wavelength cure.

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Specialty Additives

Photoinitiator 907 (2-Methyl-4′-(methylthio)-2-morpholinopropiophenone)

CAS 71868-10-5

A Type I α-aminoketone photoinitiator that efficiently cures pigmented coatings, white systems, and thicker films through extended UV absorption.

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Specialty Additives

Titanocene Photoinitiator (bis(eta5-cyclopentadienyl)bistitanium)

CAS 125051-32-3

A visible-light photoinitiator solid that generates radicals under blue/green exposure for curing through colored films and imaging applications.

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Specialty Additives

TPO Photoinitiator (Diphenyl(2,4,6-trimethylbenzoyl)phosphine Oxide)

CAS 75980-60-8

A pale-yellow acylphosphine oxide photoinitiator that cleaves under near-UV and violet light to drive fast.

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