Propanoic acid, 3,3'-[bis[[2-(isooctyloxy)-2-oxoethyl]thio]stannylene]bis-, 1,1'-dibutyl ester

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  • Identifiers

    CAS number
    63397-60-4

    Molecular formula
    C34H64O8S2Sn

    SMILES
    CCCCOC(=O)CC[Sn](CCC(=O)OCCCC)(SCC(=O)OCCCCCC(C)C)SCC(=O)OCCCCCC(C)C

    Safety labels

  • Odor profile

    Fragrance
    Fruity 32.57%
    Peach 28.89%
    Herbal 27.86%
    Odorless 27.28%
    Oily 26.99%
    Tropical 25.16%
    Fatty 24.09%
    Savory 23.9%
    Sulfurous 21.07%
    Sweet 20.84%

     

    Flavor
    Fruity 41.59%
    Green 30.4%
    Tropical 28.16%
    Oily 26.59%
    Mild 26.48%
    Waxy 26.21%
    Bland 25.82%
    Beer 21.09%
    Slightly rose 20.51%
    Marigold 20.41%

     

  • Properties

    pKa est.
    8.39 (weak base)

    Molecular weight
    783.7 g/mol

    Flash point

    • 305.23 ˚C est.

  • Synonyms

    • 63397-60-4
    • EINECS 264-122-8
    • Bis-beta-carbobutoxyethyltin bisisooctylthioglycolate
    • DTXSID7069817
    • Dibutyl 3,3'-[bis[[2-(isooctyloxy)-2-oxoethyl]thio]stannylene]bispropionate
    • Dibutyl 3,3'-(bis((2-(isooctyloxy)-2-oxoethyl)thio)stannylene)bispropionate
    • Propanoic acid, 3,3'-(bis((2-(isooctyloxy)-2-oxoethyl)thio)stannylene)bis-, 1,1'-dibutyl ester
    • Propanoic acid, 3,3'-[bis[[2-(isooctyloxy)-2-oxoethyl]thio]stannylene]bis-, 1,1'-dibutyl ester
    • RefChem:176349
    • DTXCID6043830
    • Dibutyl 3,3'-[bis[[2-(isooctyloxy)-2-oxoethyl]thio]stannylene]dipropionate
    • Dibutyl 3,3'-(bis((2-(isooctyloxy)-2-oxoethyl)thio)stannylene)dipropionate
    • Dibutyl 3,3'-(2,22-Dimethyl-9,15-dioxo-8,16-dioxa-11,13-dithia-12-stannatricosane-12,12-diyl)dipropionate
    • SCHEMBL28464533
    • Propanoic acid, 3,3'-(bis((2-(isooctyloxy)-2-oxoethyl)thio)stannylene)bis-, dibutyl ester
    • NS00112986
    • 6-Methylheptyl 4,4-bis(3-butoxy-3-oxopropyl)-14-methyl-7-oxo-8-oxa-3,5-dithia-4-stannapentadecan-1-oate
    • 63397-60-4

  • Applications

    Propanoic acid, 3,3'-[bis[[2-(isooctyloxy)-2-oxoethyl]thio]stannylene]bis-, 1,1'-dibutyl ester (CAS number: 63397-60-4) is an organotin derivative commonly used as a heat stabilizer and processing aid in plastics processing, particularly for polyvinyl chloride, helping maintain thermal stability during compounding and extrusion. It is also evaluated as a catalyst or processing additive in other polymer formulations, such as polyester and polyurethane systems, to enhance aging resistance and durability. Additionally, it serves as an intermediate in the synthesis of tin-containing specialty chemicals and may function as a coupling or crosslinking reagent in certain polymer matrices. In coatings and adhesives, it can act as a stabilizer or processing aid to improve cure and longevity, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 11.84
    methanol 10.11
    isopropanol 9.65
    water 0.04
    ethyl acetate 48.0
    n-propanol 15.41
    acetone 48.64
    n-butanol 13.19
    acetonitrile 17.37
    DMF 128.19
    toluene 33.51
    isobutanol 12.06
    1,4-dioxane 58.13
    methyl acetate 40.22
    THF 183.21
    2-butanone 60.96
    n-pentanol 17.52
    sec-butanol 15.27
    n-hexane 3.29
    ethylene glycol 1.59
    NMP 289.6
    cyclohexane 6.13
    DMSO 55.58
    n-butyl acetate 44.46
    n-octanol 22.94
    chloroform 198.62
    n-propyl acetate 51.43
    acetic acid 35.95
    dichloromethane 170.39
    cyclohexanone 137.54
    propylene glycol 4.94
    isopropyl acetate 42.42
    DMAc 238.23
    2-ethoxyethanol 41.98
    isopentanol 12.87
    n-heptane 3.28
    ethyl formate 26.07
    1,2-dichloroethane 80.83
    n-hexanol 13.12
    2-methoxyethanol 35.91
    isobutyl acetate 37.05
    tetrachloromethane 25.34
    n-pentyl acetate 87.56
    transcutol 164.31
    n-heptanol 18.15
    ethylbenzene 22.56
    MIBK 37.77
    2-propoxyethanol 43.65
    tert-butanol 13.55
    MTBE 27.22
    2-butoxyethanol 53.52
    propionic acid 24.39
    o-xylene 24.93
    formic acid 10.55
    diethyl ether 22.89
    m-xylene 23.78
    p-xylene 31.21
    chlorobenzene 51.18
    dimethyl carbonate 31.2
    n-octane 2.56
    formamide 20.97
    cyclopentanone 181.99
    2-pentanone 53.05
    anisole 50.32
    cyclopentyl methyl ether 79.06
    gamma-butyrolactone 172.63
    1-methoxy-2-propanol 42.47
    pyridine 85.48
    3-pentanone 52.33
    furfural 139.41
    n-dodecane 1.82
    diethylene glycol 17.42
    diisopropyl ether 10.67
    tert-amyl alcohol 20.51
    acetylacetone 75.46
    n-hexadecane 2.13
    acetophenone 71.67
    methyl propionate 51.66
    isopentyl acetate 43.05
    trichloroethylene 214.08
    n-nonanol 23.52
    cyclohexanol 25.15
    benzyl alcohol 35.19
    2-ethylhexanol 13.75
    isooctanol 17.5
    dipropyl ether 25.34
    1,2-dichlorobenzene 61.17
    ethyl lactate 29.33
    propylene carbonate 96.25
    n-methylformamide 37.45
    2-pentanol 11.51
    n-pentane 2.27
    1-propoxy-2-propanol 44.27
    1-methoxy-2-propyl acetate 66.46
    2-(2-methoxypropoxy) propanol 59.35
    mesitylene 14.21
    ε-caprolactone 133.46
    p-cymene 15.67
    epichlorohydrin 160.81
    1,1,1-trichloroethane 96.86
    2-aminoethanol 6.76
    morpholine-4-carbaldehyde 177.35
    sulfolane 243.01
    2,2,4-trimethylpentane 2.56
    2-methyltetrahydrofuran 102.13
    n-hexyl acetate 82.91
    isooctane 1.33
    2-(2-butoxyethoxy)ethanol 69.2
    sec-butyl acetate 41.44
    tert-butyl acetate 57.02
    decalin 4.46
    glycerin 8.83
    diglyme 138.02
    acrylic acid 22.28
    isopropyl myristate 26.07
    n-butyric acid 38.65
    acetyl acetate 39.74
    di(2-ethylhexyl) phthalate 31.24
    ethyl propionate 46.68
    nitromethane 88.95
    1,2-diethoxyethane 64.44
    benzonitrile 44.8
    trioctyl phosphate 20.28
    1-bromopropane 40.61
    gamma-valerolactone 245.36
    n-decanol 15.31
    triethyl phosphate 27.98
    4-methyl-2-pentanol 8.94
    propionitrile 20.78
    vinylene carbonate 80.95
    1,1,2-trichlorotrifluoroethane 121.41
    DMS 52.97
    cumene 15.52
    2-octanol 17.46
    2-hexanone 58.19
    octyl acetate 35.08
    limonene 22.76
    1,2-dimethoxyethane 76.98
    ethyl orthosilicate 27.6
    tributyl phosphate 25.59
    diacetone alcohol 51.91
    N,N-dimethylaniline 45.61
    acrylonitrile 25.55
    aniline 31.72
    1,3-propanediol 10.11
    bromobenzene 61.84
    dibromomethane 97.42
    1,1,2,2-tetrachloroethane 188.5
    2-methyl-cyclohexyl acetate 52.18
    tetrabutyl urea 46.01
    diisobutyl methanol 9.48
    2-phenylethanol 30.2
    styrene 27.26
    dioctyl adipate 45.39
    dimethyl sulfate 67.39
    ethyl butyrate 44.16
    methyl lactate 29.32
    butyl lactate 60.9
    diethyl carbonate 25.89
    propanediol butyl ether 46.7
    triethyl orthoformate 41.25
    p-tert-butyltoluene 15.93
    methyl 4-tert-butylbenzoate 88.16
    morpholine 81.85
    tert-butylamine 8.61
    n-dodecanol 10.0
    dimethoxymethane 67.1
    ethylene carbonate 61.95
    cyrene 81.57
    2-ethoxyethyl acetate 106.03
    2-ethylhexyl acetate 40.16
    1,2,4-trichlorobenzene 84.21
    4-methylpyridine 90.3
    dibutyl ether 32.33
    2,6-dimethyl-4-heptanol 9.48
    DEF 77.75
    dimethyl isosorbide 135.51
    tetrachloroethylene 90.93
    eugenol 70.73
    triacetin 100.32
    span 80 56.42
    1,4-butanediol 6.77
    1,1-dichloroethane 74.05
    2-methyl-1-pentanol 17.92
    methyl formate 29.75
    2-methyl-1-butanol 14.86
    n-decane 4.04
    butyronitrile 21.47
    3,7-dimethyl-1-octanol 19.79
    1-chlorooctane 20.41
    1-chlorotetradecane 6.61
    n-nonane 3.66
    undecane 2.59
    tert-butylcyclohexane 3.81
    cyclooctane 2.8
    cyclopentanol 34.3
    tetrahydropyran 69.26
    tert-amyl methyl ether 33.5
    2,5,8-trioxanonane 84.11
    1-hexene 12.45
    2-isopropoxyethanol 35.18
    2,2,2-trifluoroethanol 23.34
    methyl butyrate 60.59

    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