Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine

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  • Identifiers

    CAS number
    288254-16-0

    Molecular formula
    C47H56N8O2

    SMILES
    CCCCC(CC)CNC1=NC(=NC(=N1)NC2=CC=C(C=C2)C3=NC4=C(O3)C=CC(=C4)C(C)(C)CC)NC5=CC=C(C=C5)C6=NC7=C(O6)C=CC(=C7)C(C)(C)CC

    Safety labels

  • Odor profile

    Fragrance
    Animal 40.04%
    Fruity 35.75%
    Floral 30.61%
    Fatty 30.01%
    Burnt 24.94%
    Fresh 24.89%
    Roasted 24.62%
    Neroli 21.36%
    Leathery 21.07%
    Savory 20.76%

     

    Flavor
    Bitter 59.92%
    Bland 22.03%
    Pepper 21.5%
    Carrot 20.75%
    Cedarleaf 20.27%
    Green pepper 20.1%
    Syrup 19.8%
    Tomato leaf 19.17%
    Parsley 18.4%
    Herbal 18.37%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    14.6

    pKa est.
    7.3 (neutral)

    Molecular weight
    765.0 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    3557°C

    Flash point

    • 326.96 ˚C est.

  • Synonyms

    • Uvasorb K2a
    • Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine
    • UNII-BU9H717REF
    • BU9H717REF
    • 288254-16-0
    • 1,3,5-Triazine-2,4,6-triamine, N,N'-bis(4-(5-(1,1-dimethylpropyl)-2-benzoxazolyl)phenyl)-N''-(2-ethylhexyl)-
    • 1,3,5-Triazine-2,4,6-triamine, N2,N4-bis(4-(5-(1,1-dimethylpropyl)-2-benzoxazolyl)phenyl)-N6-(2-ethylhexyl)-
    • 2,4-Bis(5-(1-dimethylpropyl)benzoxazol-2-yl(4-phenyl)imino)-6-(2-ethylhexyl)imino-1,3,5-triazine
    • Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine [INCI]
    • RefChem:139163
    • (+-)-ETHYLHEXYL BIS-ISOPENTYLBENZOXAZOLYLPHENYL MELAMINE
    • ETHYLHEXYL BIS-ISOPENTYLBENZOXAZOLYLPHENYL MELAMINE, (+-)-
    • (+/-)-Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine
    • Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine, (+/-)-
    • SCHEMBL432261
    • SCHEMBL29724216
    • DTXSID501021214
    • Q27274889
    • 288254-16-0

  • Applications

    Ethylhexyl bis-isopentylbenzoxazolylphenyl melamine (CAS 288254-16-0) is commonly used as a hindered amine light stabilizer (HALS) to enhance the weathering and UV durability of polymer formulations, including plastics and packaging materials, and to improve the resistance of coatings and inks to photo-oxidative degradation; it is also employed in adhesives to boost outdoor aging performance, and in automotive and architectural coatings as well as electronics encapsulants where UV stability is beneficial.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.59
    methanol 1.96
    isopropanol 1.07
    water 0.01
    ethyl acetate 5.12
    n-propanol 1.98
    acetone 5.27
    n-butanol 1.77
    acetonitrile 1.05
    DMF 12.01
    toluene 3.48
    isobutanol 1.43
    1,4-dioxane 5.65
    methyl acetate 6.58
    THF 18.28
    2-butanone 9.76
    n-pentanol 1.78
    sec-butanol 1.86
    n-hexane 0.15
    ethylene glycol 0.57
    NMP 36.5
    cyclohexane 0.13
    DMSO 6.55
    n-butyl acetate 4.18
    n-octanol 0.97
    chloroform 65.98
    n-propyl acetate 4.78
    acetic acid 7.57
    dichloromethane 38.78
    cyclohexanone 13.97
    propylene glycol 1.32
    isopropyl acetate 3.79
    DMAc 31.98
    2-ethoxyethanol 4.46
    isopentanol 1.49
    n-heptane 0.15
    ethyl formate 3.96
    1,2-dichloroethane 10.79
    n-hexanol 1.28
    2-methoxyethanol 5.77
    isobutyl acetate 3.21
    tetrachloromethane 3.76
    n-pentyl acetate 5.63
    transcutol 9.72
    n-heptanol 1.36
    ethylbenzene 1.5
    MIBK 3.33
    2-propoxyethanol 5.95
    tert-butanol 1.02
    MTBE 1.91
    2-butoxyethanol 5.52
    propionic acid 5.72
    o-xylene 1.65
    formic acid 3.6
    diethyl ether 1.74
    m-xylene 1.78
    p-xylene 2.49
    chlorobenzene 8.82
    dimethyl carbonate 6.24
    n-octane 0.09
    formamide 3.66
    cyclopentanone 23.66
    2-pentanone 6.23
    anisole 3.83
    cyclopentyl methyl ether 5.17
    gamma-butyrolactone 25.95
    1-methoxy-2-propanol 5.77
    pyridine 14.25
    3-pentanone 6.06
    furfural 23.34
    n-dodecane 0.07
    diethylene glycol 2.83
    diisopropyl ether 0.53
    tert-amyl alcohol 1.79
    acetylacetone 9.22
    n-hexadecane 0.08
    acetophenone 7.36
    methyl propionate 7.48
    isopentyl acetate 4.15
    trichloroethylene 57.7
    n-nonanol 1.15
    cyclohexanol 1.67
    benzyl alcohol 4.54
    2-ethylhexanol 1.1
    isooctanol 1.24
    dipropyl ether 1.75
    1,2-dichlorobenzene 8.73
    ethyl lactate 3.81
    propylene carbonate 13.33
    n-methylformamide 5.12
    2-pentanol 1.29
    n-pentane 0.12
    1-propoxy-2-propanol 5.07
    1-methoxy-2-propyl acetate 6.93
    2-(2-methoxypropoxy) propanol 6.24
    mesitylene 0.75
    ε-caprolactone 14.71
    p-cymene 0.85
    epichlorohydrin 29.32
    1,1,1-trichloroethane 13.02
    2-aminoethanol 1.3
    morpholine-4-carbaldehyde 18.33
    sulfolane 34.95
    2,2,4-trimethylpentane 0.12
    2-methyltetrahydrofuran 8.21
    n-hexyl acetate 4.58
    isooctane 0.05
    2-(2-butoxyethoxy)ethanol 5.91
    sec-butyl acetate 3.54
    tert-butyl acetate 3.52
    decalin 0.12
    glycerin 2.88
    diglyme 10.17
    acrylic acid 7.4
    isopropyl myristate 1.52
    n-butyric acid 7.18
    acetyl acetate 4.4
    di(2-ethylhexyl) phthalate 2.95
    ethyl propionate 4.56
    nitromethane 11.86
    1,2-diethoxyethane 3.73
    benzonitrile 3.69
    trioctyl phosphate 1.67
    1-bromopropane 4.63
    gamma-valerolactone 34.14
    n-decanol 0.77
    triethyl phosphate 2.47
    4-methyl-2-pentanol 0.84
    propionitrile 1.71
    vinylene carbonate 14.26
    1,1,2-trichlorotrifluoroethane 37.17
    DMS 6.76
    cumene 0.94
    2-octanol 1.09
    2-hexanone 6.06
    octyl acetate 2.25
    limonene 0.99
    1,2-dimethoxyethane 6.56
    ethyl orthosilicate 2.35
    tributyl phosphate 2.11
    diacetone alcohol 5.23
    N,N-dimethylaniline 2.82
    acrylonitrile 3.1
    aniline 4.99
    1,3-propanediol 2.22
    bromobenzene 10.11
    dibromomethane 16.87
    1,1,2,2-tetrachloroethane 41.74
    2-methyl-cyclohexyl acetate 3.56
    tetrabutyl urea 3.21
    diisobutyl methanol 0.6
    2-phenylethanol 3.71
    styrene 2.01
    dioctyl adipate 3.05
    dimethyl sulfate 14.33
    ethyl butyrate 3.54
    methyl lactate 6.41
    butyl lactate 6.36
    diethyl carbonate 2.42
    propanediol butyl ether 4.67
    triethyl orthoformate 3.42
    p-tert-butyltoluene 0.78
    methyl 4-tert-butylbenzoate 7.06
    morpholine 7.11
    tert-butylamine 0.47
    n-dodecanol 0.52
    dimethoxymethane 7.76
    ethylene carbonate 8.68
    cyrene 9.6
    2-ethoxyethyl acetate 9.44
    2-ethylhexyl acetate 3.6
    1,2,4-trichlorobenzene 14.98
    4-methylpyridine 11.46
    dibutyl ether 1.33
    2,6-dimethyl-4-heptanol 0.6
    DEF 7.91
    dimethyl isosorbide 10.59
    tetrachloroethylene 22.79
    eugenol 7.03
    triacetin 7.46
    span 80 5.77
    1,4-butanediol 1.02
    1,1-dichloroethane 11.33
    2-methyl-1-pentanol 1.9
    methyl formate 5.34
    2-methyl-1-butanol 1.85
    n-decane 0.13
    butyronitrile 1.69
    3,7-dimethyl-1-octanol 0.99
    1-chlorooctane 0.75
    1-chlorotetradecane 0.26
    n-nonane 0.11
    undecane 0.09
    tert-butylcyclohexane 0.12
    cyclooctane 0.07
    cyclopentanol 2.97
    tetrahydropyran 4.34
    tert-amyl methyl ether 2.33
    2,5,8-trioxanonane 6.78
    1-hexene 0.82
    2-isopropoxyethanol 3.64
    2,2,2-trifluoroethanol 4.67
    methyl butyrate 6.28

    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