2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol

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  • Identifiers

    CAS number
    70321-86-7

    Molecular formula
    C30H29N3O

    SMILES
    CC(C)(C1=CC=CC=C1)C2=CC(=C(C(=C2)N3N=C4C=CC=CC4=N3)O)C(C)(C)C5=CC=CC=C5

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 66.53%
    Floral 51.96%
    Rose 40.94%
    Fresh 37.04%
    Animal 32.24%
    Neroli 29.02%
    Green 26.14%
    Musk 24.44%
    Raspberry 23.99%
    Fatty 22.87%

     

    Flavor
    Bitter 49.69%
    Green pepper 18.86%
    Carrot 18.81%
    Cedarleaf 18.75%
    Creosote 18.53%
    Syrup 18.52%
    Lovage 18.1%
    Heather 18.02%
    Parsley 17.81%
    Broom 17.7%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    8.6

    pKa est.
    4.76 (weak acid)

    Molecular weight
    447.6 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    861°C

    Flash point

    • 239.52 ˚C est.

  • Synonyms

    • 70321-86-7
    • 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol
    • Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)-
    • UV-234
    • Tinuvin 234
    • BENZOTRIAZOLE BT
    • 2-(2H-Benzo[d][1,2,3]triazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol
    • EINECS 274-570-6
    • UNII-9B1ZX3NU45
    • 2-(benzotriazol-2-yl)-4,6-bis(2-phenylpropan-2-yl)phenol
    • 9B1ZX3NU45
    • DTXSID2028985
    • DTXCID008985
    • UV 234 (ANTIOXIDANT)
    • EC 274-570-6
    • 2-(2h-benzotriazol-2-yl)-4,6-bis(1-methyl-l-phenylethyl)phenol
    • 2-(2-HYDROXY-3,5-DI-.ALPHA.-CUMYLPHENYL)-2H-BENZOTRIAZOLE
    • Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)
    • 2-(2-HYDROXY-3,5-DI(1,1-DIMETHYLBENZYL)PHENYL)-2H-BENZOTRIAZOLE
    • 2-(2'-HYDROXY-3',5'-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)PHENYL)BENZOTRIAZOLE
    • 2-(2H-BENZOTRIAZOL-2-YL)-4,6-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)PHENOL
    • 2-(3',5'-BIS(.ALPHA.,.ALPHA.-DIMETHYLBENZYL)-2'-HYDROXYPHENYL)BENZOTRIAZOLE
    • 274-570-6
    • UV Absorber 234
    • 2-(1,2,3-BENZOTRIAZOL-2-YL)-4,6-BIS(2-PHENYLPROPAN-2-YL)PHENOL
    • 2-(3',5'-bis(alpha,alpha-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole
    • 2-[3',5'-bis(alpha,alpha-dimethylbenzyl)-2'-hydroxyphenyl]benzotriazole
    • MFCD00134705
    • SCHEMBL29903
    • Ultraviolet AbsorbentUV-234
    • CHEMBL1892237
    • MSK3462
    • Tox21_202571
    • AKOS015895747
    • 1ST3462
    • MSK3462-100
    • NCGC00164197-01
    • NCGC00260120-01
    • AS-13201
    • CAS-70321-86-7
    • B3717
    • CS-0135912
    • NS00004642
    • 1ST3462-100
    • UV-234 Solution in Acetonitrile, 100?g/mL
    • D97736
    • UV-234 Solution in Acetonitrile, 100mug/mL
    • A836845
    • Q27272294
    • 2-(2-benzotriazolyl)-4,6-bis(2-phenylpropan-2-yl)phenol
    • 2-(2-hydroxy-3,5-di-alpha-cumylphenyl)-2h-benzotriazole
    • 2-(2H-Benzotriazol-2-yl)-4 pound not6-bis(1-methyl-1-phenylethyl)phenol
    • 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol, powder
    • 2-(2H-BENZOTRIAZOL-2-YL)-4,6-BIS(ALPHA,ALPHA-DIMETHYLBENZYL)PHENOL
    • 2-[2-hydroxy-3,5-di-(alpha,alpha-dimethylbenzyl)phenyl]-2H-benzotriazole

  • Applications

    2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol (CAS 70321-86-7) is primarily used as an optical UV stabilizer in polymers and coatings, helping to absorb UV radiation and slow photo-degradation to extend service life. Typical applications include functioning as a UV absorber in plastics and paints/inks to protect against fading and degradation, in adhesives and sealants to improve outdoor durability, and as a potential intermediate or co-stabilizer component in polymer formulations. It may also be used in combination with other stabilizers (for example HALS) to enhance overall photostability. Where used, application and limits depend on local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.9
    methanol 2.67
    isopropanol 0.84
    water 0.01
    ethyl acetate 6.71
    n-propanol 2.3
    acetone 7.56
    n-butanol 2.28
    acetonitrile 2.04
    DMF 26.07
    toluene 6.41
    isobutanol 1.45
    1,4-dioxane 13.32
    methyl acetate 8.01
    THF 55.27
    2-butanone 13.11
    n-pentanol 2.64
    sec-butanol 1.59
    n-hexane 0.19
    ethylene glycol 0.55
    NMP 37.74
    cyclohexane 0.14
    DMSO 10.97
    n-butyl acetate 7.08
    n-octanol 1.83
    chloroform 90.08
    n-propyl acetate 6.67
    acetic acid 5.6
    dichloromethane 75.76
    cyclohexanone 18.4
    propylene glycol 1.17
    isopropyl acetate 5.35
    DMAc 49.75
    2-ethoxyethanol 7.59
    isopentanol 2.14
    n-heptane 0.27
    ethyl formate 4.76
    1,2-dichloroethane 25.35
    n-hexanol 2.75
    2-methoxyethanol 9.61
    isobutyl acetate 5.6
    tetrachloromethane 3.25
    n-pentyl acetate 10.0
    transcutol 29.37
    n-heptanol 2.74
    ethylbenzene 4.05
    MIBK 6.14
    2-propoxyethanol 13.97
    tert-butanol 1.14
    MTBE 3.09
    2-butoxyethanol 10.99
    propionic acid 4.55
    o-xylene 2.85
    formic acid 2.79
    diethyl ether 3.46
    m-xylene 3.04
    p-xylene 4.68
    chlorobenzene 16.68
    dimethyl carbonate 11.75
    n-octane 0.17
    formamide 5.31
    cyclopentanone 34.97
    2-pentanone 9.13
    anisole 11.88
    cyclopentyl methyl ether 10.49
    gamma-butyrolactone 35.3
    1-methoxy-2-propanol 9.02
    pyridine 26.44
    3-pentanone 9.4
    furfural 35.4
    n-dodecane 0.12
    diethylene glycol 5.99
    diisopropyl ether 1.06
    tert-amyl alcohol 2.06
    acetylacetone 13.58
    n-hexadecane 0.14
    acetophenone 13.71
    methyl propionate 10.55
    isopentyl acetate 8.23
    trichloroethylene 96.61
    n-nonanol 2.31
    cyclohexanol 1.85
    benzyl alcohol 8.2
    2-ethylhexanol 2.54
    isooctanol 2.71
    dipropyl ether 4.97
    1,2-dichlorobenzene 16.74
    ethyl lactate 5.28
    propylene carbonate 16.66
    n-methylformamide 8.58
    2-pentanol 1.44
    n-pentane 0.14
    1-propoxy-2-propanol 9.54
    1-methoxy-2-propyl acetate 15.26
    2-(2-methoxypropoxy) propanol 13.31
    mesitylene 1.34
    ε-caprolactone 17.41
    p-cymene 2.4
    epichlorohydrin 72.15
    1,1,1-trichloroethane 16.15
    2-aminoethanol 1.47
    morpholine-4-carbaldehyde 35.02
    sulfolane 43.42
    2,2,4-trimethylpentane 0.18
    2-methyltetrahydrofuran 15.91
    n-hexyl acetate 8.13
    isooctane 0.1
    2-(2-butoxyethoxy)ethanol 13.88
    sec-butyl acetate 5.46
    tert-butyl acetate 6.93
    decalin 0.26
    glycerin 3.13
    diglyme 26.85
    acrylic acid 6.39
    isopropyl myristate 3.34
    n-butyric acid 6.41
    acetyl acetate 5.47
    di(2-ethylhexyl) phthalate 5.96
    ethyl propionate 7.16
    nitromethane 16.72
    1,2-diethoxyethane 11.13
    benzonitrile 6.95
    trioctyl phosphate 3.21
    1-bromopropane 9.4
    gamma-valerolactone 50.96
    n-decanol 1.55
    triethyl phosphate 4.74
    4-methyl-2-pentanol 1.42
    propionitrile 3.46
    vinylene carbonate 19.24
    1,1,2-trichlorotrifluoroethane 40.6
    DMS 13.18
    cumene 2.48
    2-octanol 1.81
    2-hexanone 9.09
    octyl acetate 4.4
    limonene 2.66
    1,2-dimethoxyethane 17.18
    ethyl orthosilicate 5.0
    tributyl phosphate 3.88
    diacetone alcohol 8.59
    N,N-dimethylaniline 8.7
    acrylonitrile 6.53
    aniline 7.78
    1,3-propanediol 2.47
    bromobenzene 18.63
    dibromomethane 32.52
    1,1,2,2-tetrachloroethane 57.65
    2-methyl-cyclohexyl acetate 7.98
    tetrabutyl urea 6.92
    diisobutyl methanol 1.69
    2-phenylethanol 9.3
    styrene 5.17
    dioctyl adipate 7.2
    dimethyl sulfate 22.31
    ethyl butyrate 7.02
    methyl lactate 8.3
    butyl lactate 9.27
    diethyl carbonate 5.05
    propanediol butyl ether 7.37
    triethyl orthoformate 6.75
    p-tert-butyltoluene 2.24
    methyl 4-tert-butylbenzoate 14.86
    morpholine 15.49
    tert-butylamine 0.61
    n-dodecanol 1.08
    dimethoxymethane 20.74
    ethylene carbonate 11.45
    cyrene 19.09
    2-ethoxyethyl acetate 17.17
    2-ethylhexyl acetate 7.23
    1,2,4-trichlorobenzene 23.76
    4-methylpyridine 17.9
    dibutyl ether 3.23
    2,6-dimethyl-4-heptanol 1.69
    DEF 12.54
    dimethyl isosorbide 33.09
    tetrachloroethylene 30.54
    eugenol 15.85
    triacetin 12.58
    span 80 10.42
    1,4-butanediol 1.12
    1,1-dichloroethane 16.48
    2-methyl-1-pentanol 3.29
    methyl formate 8.28
    2-methyl-1-butanol 2.47
    n-decane 0.25
    butyronitrile 3.03
    3,7-dimethyl-1-octanol 2.28
    1-chlorooctane 1.66
    1-chlorotetradecane 0.57
    n-nonane 0.2
    undecane 0.16
    tert-butylcyclohexane 0.26
    cyclooctane 0.08
    cyclopentanol 2.89
    tetrahydropyran 8.51
    tert-amyl methyl ether 4.13
    2,5,8-trioxanonane 18.61
    1-hexene 1.41
    2-isopropoxyethanol 6.17
    2,2,2-trifluoroethanol 3.64
    methyl butyrate 9.1

    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