Ethyl trimethylbenzoyl phenylphosphinate

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  • Identifiers

    CAS number
    84434-11-7

    Molecular formula
    C18H21O3P

    SMILES
    CCOP(=O)(C1=CC=CC=C1)C(=O)C2=C(C=C(C=C2C)C)C

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 58.14%
    Fruity 42.4%
    Sweet 38.67%
    Neroli 35.76%
    Powdery 34.54%
    Grape 33.48%
    Honey 31.46%
    Green 31.35%
    Fatty 29.9%
    Dry 29.75%

     

    Flavor
    Bitter 57.75%
    Odorless 29.34%
    Bland 21.73%
    Mild 21.51%
    Heather 21.09%
    Genet 20.98%
    Broom 20.77%
    Orange flower 20.71%
    Ethyl benzoate 20.17%
    Parsley 20.11%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    3.9

    pKa est.
    6.12 (neutral)

    Molecular weight
    316.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    489°C

    Flash point

    • 201.22 ˚C est.

  • Synonyms

    • 84434-11-7
    • Ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate
    • ETHYL (2,4,6-TRIMETHYLBENZOYL)PHENYLPHOSPHINATE
    • Ethyl trimethylbenzoyl phenylphosphinate
    • 71TY9W41AJ
    • Phosphinic acid, phenyl(2,4,6-trimethylbenzoyl)-, ethyl ester
    • EINECS 282-810-6
    • LUCIRIN TPO LIQUID
    • 2,4,6-trimethylbenzoylethoxyphenylphosphine oxide
    • DTXSID40868808
    • EC 282-810-6
    • LR 8893X
    • Phosphinic acid, P-phenyl-P-(2,4,6-trimethylbenzoyl)-, ethyl ester
    • 2,4,6-trimethylbenzoylphenylethoxyphosphine oxide
    • RefChem:596428
    • DTXCID30816878
    • ETHYL TRIMETHYLBENZOYL PHENYLPHOSPHINATE [INCI]
    • 282-810-6
    • Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate
    • TPO-L
    • MFCD08692488
    • [ethoxy(phenyl)phosphoryl]-(2,4,6-trimethylphenyl)methanone
    • 2,4,6-trimethylbenzoylphenylphosphinic acid ethyl ester
    • p-Phenyl-p-(2,4,6-trimethylbenzoyl)phosphinic Acid Ethyl Ester
    • UNII-71TY9W41AJ
    • SCHEMBL36028
    • orb2944120
    • CHEBI:188868
    • AKOS015917958
    • CS-W018680
    • Ethyl (mesitylcarbonyl)phenylphosphinate
    • FE75421
    • HY-W017894
    • MSK166871-100B
    • AC-27897
    • AS-15944
    • SY030295
    • 2,4,6-Trimethylbenzoyldi-Phenylphosphinate
    • 2,4,6-Trimethylbenzoylethoxyphenylphosphine
    • DB-076033
    • NS00061831
    • Ethyl(2,4,6-trimethylbenzoyl)phenylphosphinate
    • Ethylphenyl(2,4,6-trimethylbenzoyl)phosphinate
    • O11818
    • 434E117
    • F079183
    • 2,4,6-trimethyl benzoyl phenyl phosphinic ethyl ester
    • Q27265979
    • ETHYL-(2,4,6-TRIMETHYLBENZOYL) PHENYLPHOSPHINATE
    • Ethyl phenyl(2 pound not4 pound not6-trimethylbenzoyl)phosphinate
    • Lucirin TPO liquid (Ethyl-2, 4, 6 trimethylbenzoylphenyl phosphinate
    • Ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate Solution in Acetone, 100ug/mL
    • 84434-11-7

  • Applications

    Ethyl trimethylbenzoyl phenylphosphinate (CAS 84434-11-7) is a phosphinate photoinitiator used to initiate radical polymerization of acrylate/methacrylate systems under UV light. Common applications include: acting as a photoinitiator for UV-curable coatings and varnishes in industries such as automotive and wood finishes; UV-curable inks and coatings for printing; UV-curable adhesives and sealants used in assembly and bonding; resins for 3D printing (SLA/DLP) and other UV-curable polymer systems; photoresists for electronics and semiconductor manufacturing. These applications are subject to local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 772.41
    methanol 1009.22
    isopropanol 403.84
    water 1.48
    ethyl acetate 229.58
    n-propanol 632.01
    acetone 504.59
    n-butanol 548.49
    acetonitrile 440.54
    DMF 1200.47
    toluene 236.51
    isobutanol 388.48
    1,4-dioxane 641.76
    methyl acetate 322.65
    THF 875.03
    2-butanone 501.52
    n-pentanol 309.65
    sec-butanol 323.89
    n-hexane 16.11
    ethylene glycol 135.85
    NMP 836.23
    cyclohexane 58.67
    DMSO 393.23
    n-butyl acetate 169.82
    n-octanol 72.35
    chloroform 1135.36
    n-propyl acetate 135.92
    acetic acid 387.86
    dichloromethane 1061.03
    cyclohexanone 836.22
    propylene glycol 164.45
    isopropyl acetate 116.07
    DMAc 641.48
    2-ethoxyethanol 356.03
    isopentanol 309.14
    n-heptane 13.98
    ethyl formate 304.69
    1,2-dichloroethane 873.6
    n-hexanol 291.82
    2-methoxyethanol 752.12
    isobutyl acetate 92.33
    tetrachloromethane 91.93
    n-pentyl acetate 136.34
    transcutol 250.87
    n-heptanol 111.97
    ethylbenzene 79.78
    MIBK 143.2
    2-propoxyethanol 394.17
    tert-butanol 235.27
    MTBE 169.88
    2-butoxyethanol 185.91
    propionic acid 279.45
    o-xylene 91.9
    formic acid 247.56
    diethyl ether 345.52
    m-xylene 97.28
    p-xylene 83.86
    chlorobenzene 384.38
    dimethyl carbonate 132.56
    n-octane 7.35
    formamide 443.16
    cyclopentanone 760.02
    2-pentanone 351.2
    anisole 146.88
    cyclopentyl methyl ether 307.59
    gamma-butyrolactone 594.35
    1-methoxy-2-propanol 356.02
    pyridine 865.45
    3-pentanone 265.03
    furfural 561.77
    n-dodecane 5.3
    diethylene glycol 271.89
    diisopropyl ether 48.91
    tert-amyl alcohol 200.38
    acetylacetone 210.68
    n-hexadecane 6.06
    acetophenone 152.07
    methyl propionate 249.34
    isopentyl acetate 136.79
    trichloroethylene 1314.87
    n-nonanol 66.83
    cyclohexanol 367.87
    benzyl alcohol 224.89
    2-ethylhexanol 105.44
    isooctanol 81.16
    dipropyl ether 85.15
    1,2-dichlorobenzene 255.92
    ethyl lactate 76.13
    propylene carbonate 276.61
    n-methylformamide 768.23
    2-pentanol 220.22
    n-pentane 30.53
    1-propoxy-2-propanol 174.48
    1-methoxy-2-propyl acetate 135.78
    2-(2-methoxypropoxy) propanol 82.71
    mesitylene 48.24
    ε-caprolactone 486.82
    p-cymene 46.99
    epichlorohydrin 966.94
    1,1,1-trichloroethane 389.43
    2-aminoethanol 341.71
    morpholine-4-carbaldehyde 638.9
    sulfolane 496.04
    2,2,4-trimethylpentane 12.85
    2-methyltetrahydrofuran 563.55
    n-hexyl acetate 133.44
    isooctane 9.18
    2-(2-butoxyethoxy)ethanol 131.08
    sec-butyl acetate 81.72
    tert-butyl acetate 105.47
    decalin 17.77
    glycerin 185.48
    diglyme 250.66
    acrylic acid 258.59
    isopropyl myristate 41.33
    n-butyric acid 410.83
    acetyl acetate 114.26
    di(2-ethylhexyl) phthalate 58.25
    ethyl propionate 104.62
    nitromethane 590.45
    1,2-diethoxyethane 137.82
    benzonitrile 276.36
    trioctyl phosphate 44.08
    1-bromopropane 417.28
    gamma-valerolactone 976.51
    n-decanol 46.06
    triethyl phosphate 52.51
    4-methyl-2-pentanol 86.52
    propionitrile 390.57
    vinylene carbonate 309.15
    1,1,2-trichlorotrifluoroethane 462.8
    DMS 112.17
    cumene 46.77
    2-octanol 69.57
    2-hexanone 194.04
    octyl acetate 60.28
    limonene 69.31
    1,2-dimethoxyethane 395.41
    ethyl orthosilicate 53.69
    tributyl phosphate 46.38
    diacetone alcohol 154.16
    N,N-dimethylaniline 94.44
    acrylonitrile 484.4
    aniline 320.98
    1,3-propanediol 509.75
    bromobenzene 352.82
    dibromomethane 718.05
    1,1,2,2-tetrachloroethane 921.28
    2-methyl-cyclohexyl acetate 91.34
    tetrabutyl urea 72.12
    diisobutyl methanol 44.24
    2-phenylethanol 206.7
    styrene 117.16
    dioctyl adipate 62.3
    dimethyl sulfate 156.96
    ethyl butyrate 90.34
    methyl lactate 127.54
    butyl lactate 103.26
    diethyl carbonate 66.04
    propanediol butyl ether 129.4
    triethyl orthoformate 73.61
    p-tert-butyltoluene 43.36
    methyl 4-tert-butylbenzoate 100.65
    morpholine 1010.48
    tert-butylamine 124.68
    n-dodecanol 32.91
    dimethoxymethane 471.12
    ethylene carbonate 261.86
    cyrene 150.69
    2-ethoxyethyl acetate 171.48
    2-ethylhexyl acetate 114.88
    1,2,4-trichlorobenzene 292.18
    4-methylpyridine 660.74
    dibutyl ether 53.41
    2,6-dimethyl-4-heptanol 44.24
    DEF 402.69
    dimethyl isosorbide 171.72
    tetrachloroethylene 552.89
    eugenol 119.66
    triacetin 90.59
    span 80 93.62
    1,4-butanediol 187.97
    1,1-dichloroethane 616.53
    2-methyl-1-pentanol 212.68
    methyl formate 463.62
    2-methyl-1-butanol 352.38
    n-decane 9.0
    butyronitrile 442.75
    3,7-dimethyl-1-octanol 57.06
    1-chlorooctane 47.3
    1-chlorotetradecane 18.1
    n-nonane 8.04
    undecane 6.66
    tert-butylcyclohexane 14.26
    cyclooctane 13.41
    cyclopentanol 384.45
    tetrahydropyran 743.15
    tert-amyl methyl ether 134.35
    2,5,8-trioxanonane 143.31
    1-hexene 84.92
    2-isopropoxyethanol 185.33
    2,2,2-trifluoroethanol 134.76
    methyl butyrate 166.37

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction