Sinocure® 819 (920)

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® 819 can be used for printing inks and prepreg systems on wood, metal, plastic, paper and optical fiber surfaces. In white paints, colored paints and inks containing titanium dioxide or other pigments with high hiding power, adding a small amount of Sinocure®819 can make the coating have excellent curing effects and UV yellowing resistance. Because Sinocure® 819 has excellent absorption properties, it can be used in thick film systems.

Sinocure® 819(920)

Chemical Name: Phenyl bis(2,4,6-trimethylbenzoyl)-phosphine oxide

Synonym: Irgacure 819;Omnirad 808;Omnirad 819;Sinocure 819;Photoinitiator BAPO;Speedcure BPO;CGI 819;Chivacure 789;GENOCURE BAPO;Photoinitiator 920;Sinocure 920

Cas No.: 162881-26-7

Chemical Structure：

Standard :

Items	Specifications
Appearance	Pale yellow powder
Assay (HPLC)	≥99.0％
Melting point	129~133°C
Volatiles	≤0.2%
Acid value(Mg KOH/g)	≤0.2
Ash	≤0.1%

Absorption Spectrum :

Function & Applications :

Sinocure® 819 can be used in printing inks and prepreg systems for wood, metal, plastic, paper and optical fiber surfaces. In white coatings, colored coatings and inks containing titanium dioxide or other high hiding pigments, adding a small amount of Sinocure® 819 can make the coating have excellent curing effect and UV yellowing resistance. Due to its excellent absorption properties, Sinocure® 819 can be used in thick film systems.

Sinocure® 819 can be used in combination with other photoinitiators, such as Sinocure® 184 or Sinocure® 651. The combination of Sinocure® 819 and Sinocure® 651 is particularly suitable for curing polyester/styrene resin systems, such as glass fiber reinforced materials.

Due to its absorption in the long wavelength band, Sinocure® 819 can be used in combination with UV absorbers (such as Sinosorb® 400) and can therefore be used in UV-curable coatings that require weather resistance.

Reference dosage :

▶Clear acrylic and unsaturated polyester/styrene coatings

0.1- 0.2% 819 + 1-2% 184

▶White acrylic and unsaturated polyester/styrene coatings

0.5-1% 819 + 1-2% 184

▶Colored acrylic formulations

0.5-1% 819 + 1-2% 184

▶White screen printing inks

0.5-1.5% 819 + 1-2% 184

▶Fiberglass reinforced unsaturated polyester/styrene prepregs

0.1- 0.2% 819

Package :

Packing:20kg/carton box.
Delivery:with in 5-7 working days.

Storage :

Stored in a cool dry place out of direct sunlight.

How Can We Help?

We offer a variety of options to help you find the right product for your application

WHY CHOOSE SINOCURE?

Customized development

Provide formulation optimization support for water-based/solvent-based systems
Global compliance

Full coverage of REACH, FDA, and GB standards
Stable supply

99.8% on-time delivery rate, 10,000-ton production capacity guarantee

Sinocure® TPO-L

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure®TPO-L is a liquid photoinitiator, used to initiate UV polymerization of unsaturated prepolymerization systems.

Chemical Name :

Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate
CAS No. :

84434-11-7
Molecular Formula :

C18H21O3P
Assay :

95% or 98%
Package :

20kgs or 25kgs/drum

Sinocure® TPO

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® TPO is a highly efficient free radical (I) type, highly efficient photoinitiator.

Chemical Name :

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
CAS No. :

75980-60-8
Molecular Formula :

C22H21O2P
Assay :

≥99.0%
Package :

20kgs/carton

Sinocure® TBMPS

Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE® TBMPS is a UV curing initiator mainly used in the electronics industry.

Chemical Name :

Phenyl tribromomethyl sulfone
CAS No. :

17025-47-7
Molecular Formula :

C7H5Br3O2S
Assay :

98%min
Package :

20kg/carton;25kg/Drum.

Sinocure® PD-01

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure®PD-01, chemical name is 1-Phenyl-1,2-propanedione,

Chemical Name :

1-Phenyl-1,2-propanedione
CAS No. :

579-07-7
Molecular Formula :

C9H8O2
Assay :

99%
Package :

1kg/bottom or 20kgs/drum

Sinocure® OXE-02

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® OXE-02 is an oxime ester photoinitiator with high photosensitivity and a broad absorption peak,

Chemical Name :

Photoinitiator OXE-02
CAS No. :

478556-66-0
Molecular Formula :

C26H24N2O3
Assay :

99%min
Package :

1kg/bag,10kgs/carton

Sinocure® OXE-01

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® OXE-01 is an oxime ester photoinitiator with high photosensitivity and a broad absorption peak,

Chemical Name :

Photoinitiator OXE-01; 1-[4-(Phenylthio)phenyl]-1,2-octanedione 2-(O-benzoyloxime)
CAS No. :

253585-83-0
Molecular Formula :

C27H27NO3S
Assay :

98%min
Package :

10kgs/carton

Sinocure® LAP

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE® LAP is a water-soluble blue light photoinitiator that can rapidly initiate the curing of photosensitive hydrogel materials or bio-inks under the action of blue light (wavelength 405nm).

Chemical Name :

Lithium phenyl-2,4,6-trimethylbenzoylphosphinate
CAS No. :

85073-19-4
Molecular Formula :

C16H18LiO3P
Assay :

98.5%min
Package :

1kg/bag,10kgs/carton

Sinocure® DEAP

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® DEAP is a high-efficiency photoinitiator with fast curing speed,

Chemical Name :

2,2-Diethoxyacetophenone
CAS No. :

6175-45-7
Molecular Formula :

C12H16O3
Assay :

98%min
Package :

25kgs to 200kgs/drum.

Sinocure® BDK/651

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® BDK/651 (Benzil Dimethyl Ketal) is a new type of ultraviolet photosensitizer with excellent performance.

Chemical Name :

2,2-Dimethoxy-2-phenylacetophenone /Benzil Dimethyl Ketal
CAS No. :

24650-42-8
Molecular Formula :

C16H16O3
Assay :

≥99.0%
Package :

20kgs/carton

Sinocure® BCIM

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

Hexaarylbisimidazole(HABI) is a class of organic compounds, usually hexaphenylbisimidazole.

Chemical Name :

2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-biimidazole
CAS No. :

7189-82-4
Molecular Formula :

C42H28Cl2N4
Assay :

99%min
Package :

20kg/carton;25kg/Drum.

Sinocure® 907

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure®907 is a highly active photoinitiator with high photoinitiator efficiency and absorption wavelength of 330~385nm.

Chemical Name :

2-Methyl-4'-(methylthio)-2-morpholinopropiophenone
CAS No. :

71868-10-5
Molecular Formula :

C15H21NO2S
Assay :

≥99.0%
Package :

20kgs/carton

Sinocure® 819 DW

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® 819 DW is a dispersion of Sinocure 819 in water,specially used in water-based systems.

Chemical Name :

Photoinitiator 920;Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide
CAS No. :

162881-26-7
Molecular Formula :

C26H27O3P
Assay :

45%min
Package :

20kgs or 25kgs /drum

Sinocure® 379

Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE®379 is a highly efficient UV curing agent which is used to initiate the photopolymerisation of chemically prepolymers – e.g.acrylates – in combination with mono- or multifunctional monomers.

Chemical Name :

2-Dimethylamino-2-(4-methyl-benzyl)-1-(4-morpholin-4-yl-phenyl)-butan-1-one
CAS No. :

119344-86-4
Molecular Formula :

C24H32N2O2
Assay :

99% min
Package :

20kgs/carton

Sinocure® 369

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® 369 is a highly efficient UV curing agent which is used to initiate the photopolymerisation of chemically prepolymers – e.g. acrylates – in combination with mono- or multifunctional monomers.

Chemical Name :

2-Benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1
CAS No. :

119313-12-1
Molecular Formula :

C23H30N2O2
Assay :

99% min
Package :

20kgs/carton

Sinocure® 2959

Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE®2959 is a high-efficiency non-yellowing UV photoinitiator,

Chemical Name :

2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone
CAS No. :

106797-53-9
Molecular Formula :

C12H16O4
Assay :

99% min
Package :

20kgs/carton

Sinocure® 2425

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE® 2425 is a highly efficient free radical (I) type, with a similar chemical structure to SINOCURE® TPO.

Chemical Name :

Environmentally Friendly Alternatives to Pi-TPO
CAS No. :

n/a
Molecular Formula :

C24H25O2P
Assay :

≥98.5%
Package :

20kgs/carton

Sinocure® 184

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure®184 is high-efficiency free radical type I photoinitiator, easily soluble in organic solvents and monomers.

Chemical Name :

1-Hydroxycyclohexyl phenyl ketone
CAS No. :

947-19-3
Molecular Formula :

C13H16O2
Assay :

≥99.0%
Package :

20kgs/carton

Sinocure® 160

Newly Developed PIs, Polymeric photoinitiators, Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® 160 is a new type of photoinitiator, which is characterized by excellent reactivity,

Chemical Name :

Difunctional alpha hydroxy ketone;2-Hydroxy-1-[4-[4-(2-hydroxy-2-methylpropionyl)phenoxy]phenyl]-2-methylpropanone
CAS No. :

71868-15-0
Molecular Formula :

C20H22O5
Assay :

99%min
Package :

20kgs/carton

Sinocure® 150

Newly Developed PIs, Polymeric photoinitiators, Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE® 150 is a macromolecular photoinitiator.

Chemical Name :

Oligomeric alpha hydroxy ketone
CAS No. :

163702-01-0
Molecular Formula :

(C13H16O2)n
Assay :

85%min
Package :

25kg/Drum.

Sinocure® 127

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

SINOCURE® 127 is a highly efficient free radical type I photoinitiator with low volatility,

Chemical Name :

2-hydroxy-1-[4-[4-(2-hydroxy-2-methylpropionyl)benzyl)phenyl)-2-methylpropan-1-one
CAS No. :

474510-57-1
Molecular Formula :

C21H24O4
Assay :

98%min
Package :

20kg/carton;25kg/Drum.

Sinocure® 1206

Newly Developed PIs, Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure® 1206 is a highly active photoinitiator for UV light curing. It has high sensitivity to 365nm wavelength and is suitable for light curing of colored systems, including black pigment systems.

Chemical Name :

Photoinitiator APi-1206
CAS No. :

Undisclosed
Molecular Formula :

Undisclosed
Assay :

99%min
Package :

20kgs or 25kgs /drum/carton

Sinocure® 1173

Sinocure® Photoinitiator, Type I Free radical photoinitiator

Sinocure®1173 is a multifunctional liquid photoinitiator, which can be used for the acrylic series of UV-curable varnishes on paper,

Chemical Name :

2-Hydroxy-2-methylpropiophenone
CAS No. :

7473-98-5
Molecular Formula :

C10H12O2
Assay :

99%
Package :

20kgs or 25kgs/drum

Sinocure® 819 (920)

Sinocure® 819 (920)

Sinocure® 819(920)

WHY CHOOSE SINOCURE?

Related product recommendations

Sinocure® TPO-L

Sinocure® TPO

Sinocure® TBMPS

Sinocure® PD-01

Sinocure® OXE-02

Sinocure® OXE-01

Sinocure® LAP

Sinocure® DEAP

Sinocure® BDK/651

Sinocure® BCIM

Sinocure® 907

Sinocure® 819 DW

Sinocure® 379

Sinocure® 369

Sinocure® 2959

Sinocure® 2425

Sinocure® 184

Sinocure® 160

Sinocure® 150

Sinocure® 127

Sinocure® 1206

Sinocure® 1173