Sodium bis(2,2-methylene-bis(4,6-di-tert-butylphenyl)phosphate)

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  • Identifiers

    CAS number
    85209-91-2

    Molecular formula
    C29H42NaO4P

    SMILES
    CC(C)(C)C1=CC2=C(C(=C1)C(C)(C)C)OP(=O)(OC3=C(C2)C=C(C=C3C(C)(C)C)C(C)(C)C)[O-].[Na+]

    Safety labels

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Woody 54.32%
    Dry 43.2%
    Musk 41.16%
    Amber 36.1%
    Leathery 33.21%
    Phenolic 32.96%
    Vetiver 31.02%
    Fatty 29.83%
    Spicy 29.61%
    Animal 29.31%

     

    Flavor
    Camphor 38.02%
    Woody 32.65%
    Musty 29.0%
    Phenolic 28.79%
    Bitter 27.25%
    Mild 23.19%
    Green pepper 20.82%
    Earth 20.75%
    Thymol 20.55%
    Creosote 20.54%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.88 (neutral)

    Molecular weight
    508.6 g/mol

    Flash point

    • 234.29 ˚C est.

  • Synonyms

    • Sodium bis(2,2-methylene-bis(4,6-di-tert-butylphenyl)phosphate)
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate sodium salt
    • EINECS 286-344-4
    • 8TKR21D5OL
    • DTXSID2072914
    • 2,2'-methylenebis(4,6-di-tert-butylphenol) phosphate sodium salt
    • EC 286-344-4
    • 12H-Dibenzo(d,g)(1,3,2)dioxaphosphocin, 2,4,8,10-tetrakis(1,1-dimethylethyl)-6-hydroxy-, 6-oxide, sodium salt
    • 12H-Dibenzo[d,g][1,3,2]dioxaphosphocin, 2,4,8,10-tetrakis(1,1-dimethylethyl)-6-hydroxy-, 6-oxide, sodium salt
    • SODIUM 2,2'-METHYLENEBIS(4,6-DI-TERT-BUTYLPHENYL)PHOSPHATE
    • 2,4,8,10-Tetra(tert-butyl)-6-hydroxy-12H-dibenzo(d,g)(1,3,2)dioxaphosphocin 6-oxide, sodium salt
    • SODIUM 2,2'-METHYLENEBIS(4,6-DI-TERT-BUTYLPHENYL) PHOSPHATE
    • 2,4,8,10-tetra(tert-butyl)-6-hydroxy-12H-dibenzo[d,g][1,3,2]dioxaphosphocin 6-oxide, sodium salt
    • RefChem:887308
    • DTXCID5048471
    • 85209-91-2
    • Sodium 2,4,8,10-Tetra-tert-butyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin-6-olate 6-Oxide
    • MFCD01748150
    • Sodium 2,2'-methylene-bis-(4,6-di-tert-butylphenyl)phosphate
    • Sodium 2,2'-methylene-bis(4,6-di-tert-butylphenyl) phosphate
    • Sodium 2,2'-Methylene-bis(4,6-di-tert-butylphenyl)phosphate
    • UNII-8TKR21D5OL
    • ZHROMWXOTYBIMF-UHFFFAOYSA-M
    • C29H42NaO4P
    • MARK NA-11
    • SCHEMBL22099
    • MSK158437Na
    • NIOSH/SL9850000
    • SCHEMBL29351704
    • 2,2'-Methylenebis(4,6-di-t-butylphenyl) sodium phosphate
    • MSK158437Na-100A
    • 2,2'-Methylenbis(4,6-di-tert-butylphenyl)phosphate Sodium Salt
    • CS-B1290
    • MSK158437Na-1000
    • AKOS015967056
    • sodium,1,3,7,9-tetratert-butyl-11-oxido-5H-benzo[d][1,3,2]benzodioxaphosphocine 11-oxide
    • FS152843
    • SY237750
    • NS00020034
    • O0527
    • SL98500000
    • F876100
    • Q27270996
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate sodium
    • 2,2'-methylene bis-(4,6-di-tert.butylphenyl) sodium phosphate
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphatesodiumsalt
    • Phenol, 2,2'-methylenebis(4,6-di-t-butyl-, sodium phosphate
    • sodium 2,2'-methylene-bis-(4,6-di-t-butylphenyl)-phosphate
    • Sodium 2,2'-methylene-bis-(4,6-di-tertbutyphenyl) phosphate
    • Sodium 2,2'-Methylene-Bis-(2,4-Di-Tert-Butylphenyl)-Phosphate
    • sodium;1,3,7,9-tetratert-butyl-11-oxido-5H-benzo[d][1,3,2]benzodioxaphosphocine 11-oxide
    • Sodium2,4,8,10-Tetra-tert-butyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin-6-olate6-Oxide
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate sodium salt 100 microg/mL in Acetonitrile
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate sodium salt Solution in Acetonitrile, 1000?g/mL
    • 2,2'-Methylenebis(4,6-di-tert-butylphenyl)phosphate sodium salt Solution in Acetonitrile, 100ug/mL
    • 286-344-4
    • NA-11; Mark NA-11; Mark NA-11UF; Sodium 2,4,8,10-tetra-tert-butyl-12H-dibenzo[d,g][1,3,2]dioxaphosphocin-6-olate 6-oxide;
    • Sodium 2,4,8,10-tetra-tert-butyl-6-oxo-6H,12H-6lambda~5~-dibenzo[d,g][1,3,2]dioxaphosphocin-6-olate
    • 85209-91-2

  • Applications

    Sodium bis(2,2-methylene-bis(4,6-di-tert-butylphenyl)phosphate) (CAS 85209-91-2) is primarily used as a heat stabilizer and antioxidant in polymers, notably PVC and polyolefins, where it helps suppress thermal degradation and color formation during processing and in end-use. It is commonly formulated as a processing stabilizer in plastics and elastomers, improving long-term heat aging performance in pipes, films, and molded articles. The additive is also used in coatings and inks to improve thermal and color stability, and it may be incorporated into adhesive and sealant formulations to enhance aging resistance. In electronics-related polymer applications, it serves as a stabilizing additive for insulation and cable jacketing materials, contributing to durable thermal stability.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 59.81
    methanol 46.64
    isopropanol 55.17
    water 1.52
    ethyl acetate 55.62
    n-propanol 62.79
    acetone 149.69
    n-butanol 47.34
    acetonitrile 77.52
    DMF 357.72
    toluene 47.03
    isobutanol 52.58
    1,4-dioxane 114.37
    methyl acetate 86.4
    THF 310.1
    2-butanone 127.82
    n-pentanol 55.88
    sec-butanol 51.92
    n-hexane 5.97
    ethylene glycol 27.65
    NMP 381.32
    cyclohexane 5.5
    DMSO 232.7
    n-butyl acetate 85.21
    n-octanol 39.25
    chloroform 307.11
    n-propyl acetate 69.8
    acetic acid 91.18
    dichloromethane 232.69
    cyclohexanone 147.49
    propylene glycol 58.56
    isopropyl acetate 51.62
    DMAc 297.0
    2-ethoxyethanol 87.77
    isopentanol 42.92
    n-heptane 6.85
    ethyl formate 71.38
    1,2-dichloroethane 146.22
    n-hexanol 63.01
    2-methoxyethanol 112.48
    isobutyl acetate 66.87
    tetrachloromethane 38.12
    n-pentyl acetate 87.73
    transcutol 109.02
    n-heptanol 59.5
    ethylbenzene 32.21
    MIBK 65.29
    2-propoxyethanol 139.08
    tert-butanol 62.22
    MTBE 45.52
    2-butoxyethanol 118.16
    propionic acid 80.01
    o-xylene 32.84
    formic acid 46.87
    diethyl ether 39.6
    m-xylene 39.64
    p-xylene 51.3
    chlorobenzene 91.64
    dimethyl carbonate 77.92
    n-octane 4.42
    formamide 84.96
    cyclopentanone 277.8
    2-pentanone 86.47
    anisole 68.17
    cyclopentyl methyl ether 88.59
    gamma-butyrolactone 281.33
    1-methoxy-2-propanol 117.66
    pyridine 167.63
    3-pentanone 72.45
    furfural 230.37
    n-dodecane 3.15
    diethylene glycol 85.53
    diisopropyl ether 16.44
    tert-amyl alcohol 53.83
    acetylacetone 106.72
    n-hexadecane 3.49
    acetophenone 97.23
    methyl propionate 80.63
    isopentyl acetate 84.93
    trichloroethylene 319.78
    n-nonanol 38.95
    cyclohexanol 42.03
    benzyl alcohol 79.74
    2-ethylhexanol 42.85
    isooctanol 48.15
    dipropyl ether 44.69
    1,2-dichlorobenzene 94.07
    ethyl lactate 62.04
    propylene carbonate 157.17
    n-methylformamide 152.29
    2-pentanol 35.22
    n-pentane 5.14
    1-propoxy-2-propanol 109.75
    1-methoxy-2-propyl acetate 100.21
    2-(2-methoxypropoxy) propanol 78.17
    mesitylene 24.04
    ε-caprolactone 127.76
    p-cymene 30.58
    epichlorohydrin 280.94
    1,1,1-trichloroethane 131.29
    2-aminoethanol 55.68
    morpholine-4-carbaldehyde 270.29
    sulfolane 359.77
    2,2,4-trimethylpentane 3.72
    2-methyltetrahydrofuran 137.64
    n-hexyl acetate 79.78
    isooctane 2.69
    2-(2-butoxyethoxy)ethanol 94.99
    sec-butyl acetate 50.45
    tert-butyl acetate 61.7
    decalin 5.64
    glycerin 73.29
    diglyme 133.22
    acrylic acid 91.58
    isopropyl myristate 33.78
    n-butyric acid 76.54
    acetyl acetate 44.86
    di(2-ethylhexyl) phthalate 55.37
    ethyl propionate 55.73
    nitromethane 187.94
    1,2-diethoxyethane 62.98
    benzonitrile 95.13
    trioctyl phosphate 40.22
    1-bromopropane 67.72
    gamma-valerolactone 315.23
    n-decanol 28.72
    triethyl phosphate 39.26
    4-methyl-2-pentanol 26.75
    propionitrile 76.83
    vinylene carbonate 145.01
    1,1,2-trichlorotrifluoroethane 214.06
    DMS 85.79
    cumene 26.98
    2-octanol 40.02
    2-hexanone 86.56
    octyl acetate 46.13
    limonene 33.09
    1,2-dimethoxyethane 124.83
    ethyl orthosilicate 37.57
    tributyl phosphate 41.26
    diacetone alcohol 89.35
    N,N-dimethylaniline 71.74
    acrylonitrile 108.88
    aniline 68.41
    1,3-propanediol 55.04
    bromobenzene 89.04
    dibromomethane 147.93
    1,1,2,2-tetrachloroethane 254.33
    2-methyl-cyclohexyl acetate 69.47
    tetrabutyl urea 65.73
    diisobutyl methanol 24.21
    2-phenylethanol 89.89
    styrene 36.07
    dioctyl adipate 52.98
    dimethyl sulfate 142.51
    ethyl butyrate 56.64
    methyl lactate 83.07
    butyl lactate 90.6
    diethyl carbonate 41.15
    propanediol butyl ether 96.07
    triethyl orthoformate 48.95
    p-tert-butyltoluene 30.46
    methyl 4-tert-butylbenzoate 108.66
    morpholine 151.42
    tert-butylamine 35.21
    n-dodecanol 20.57
    dimethoxymethane 146.72
    ethylene carbonate 107.42
    cyrene 135.65
    2-ethoxyethyl acetate 101.56
    2-ethylhexyl acetate 71.57
    1,2,4-trichlorobenzene 128.92
    4-methylpyridine 139.97
    dibutyl ether 29.69
    2,6-dimethyl-4-heptanol 24.21
    DEF 101.83
    dimethyl isosorbide 170.93
    tetrachloroethylene 139.82
    eugenol 113.88
    triacetin 86.15
    span 80 84.3
    1,4-butanediol 39.41
    1,1-dichloroethane 130.36
    2-methyl-1-pentanol 47.24
    methyl formate 131.31
    2-methyl-1-butanol 42.57
    n-decane 5.27
    butyronitrile 64.07
    3,7-dimethyl-1-octanol 31.89
    1-chlorooctane 24.55
    1-chlorotetradecane 10.18
    n-nonane 4.8
    undecane 3.98
    tert-butylcyclohexane 5.98
    cyclooctane 2.58
    cyclopentanol 85.83
    tetrahydropyran 91.47
    tert-amyl methyl ether 38.46
    2,5,8-trioxanonane 96.27
    1-hexene 23.73
    2-isopropoxyethanol 72.27
    2,2,2-trifluoroethanol 60.53
    methyl butyrate 76.33

    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