• Identifiers

    CAS number
    60066-88-8

    Molecular formula
    C15H22O

    SMILES
    C/C(=C\CCC(=C)C=C)/CC/C=C(\C)/C=O

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Health Hazard
    Health

    Environmental Hazard
    Environmental

    Retention indicies (RI)

    • DB5: 1700.0
    • Carbowax: 2240.0
  • Odor profile

    Fruity 69.27%
    Citrus 66.6%
    Fresh 57.44%
    Sweet 53.69%
    Green 52.67%
    Waxy 51.69%
    Floral 49.99%
    Aldehydic 48.97%
    Woody 41.96%
    Fatty 37.97%

    Scent© AI

  • Properties

    XLogP3-AA
    4.8

    pKa est.
    7.39 (neutral)

    Molecular weight
    218.33 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point

    • 180.00 °C. @ 1.00 mm Hg

    Flash point est.
    127.81 ˚C

    Solubility expt.

    • Insoluble in water; soluble in oils
    • soluble (in ethanol)

  • Synonyms

    • beta-Sinensal
    • sinensal
    • 60066-88-8
    • trans-beta-Sinensal
    • 3779-62-2
    • 2,6-Dimethyl-10-methylene-2,6,11-dodecatrienal
    • 2,6-Dimethyl-10-methylenedodeca-2,6,11-trien-1-al
    • Sinensal, beta-
    • UNII-4C2WZT6IRL
    • beta-Sinensal (natural)
    • 4C2WZT6IRL
    • beta-Sinensal, (2E,6E)-
    • (2E,6E)-2,6-dimethyl-10-methylidenedodeca-2,6,11-trienal
    • FEMA No. 3141
    • 2,6,11-Dodecatrienal, 2,6-dimethyl-10-methylene-
    • FEMA No. 3141, (2E,6E)-
    • EINECS 262-043-3
    • TJW2V5DYI3
    • Orange terpenes
    • 2,6,11-Dodecatrienal, 2,6-dimethyl-10-methylene-, (E,E)-
    • trans,trans-2,6-Dimethyl-10-methylene-2,6,11-dodecatrienal
    • 2,6,11-Dodecatrienal, 2,6-dimethyl-10-methylene-, (2E,6E)-
    • UNII-TJW2V5DYI3
    • DTXSID0069383
    • sinensal (beta-)
    • (2E,6E)-beta-sinensal
    • C09730
    • SINENSAL, .BETA.-
    • SCHEMBL231265
    • TRANS-.BETA.-SINENSAL
    • DTXCID9042752
    • CHEBI:10444
    • FEMA 3141
    • (2E,6E)-2,6-dimethyl-10-methylene-dodeca-2,6,11-trienal
    • DTXSID901318720
    • 8028-48-6
    • .BETA.-SINENSAL, (2E,6E)-
    • Q27108641
    • 2,6-DIMETHYL-10-METHYLENE-2,6,11-DODECATRIENAL [FHFI]
  • Applications

    beta-SINENSAL (CAS 60066-88-8) is a naturally occurring sesquiterpene aldehyde in orange peel oil (Citrus sinensis), used primarily as a flavor and fragrance ingredient to deliver bright orange-peel citrus top notes with warm woody nuances, enhancing top-note impact and fixation in fine fragrances, air care, detergents, and deodorizing products; in foods and beverages it is dosed at very low levels as a natural orange flavor for soft drinks, confectionery, ice cream, and chewing gum, and it serves as a characteristic aroma marker to standardize citrus oil organoleptic profiles; in analytics and quality control, β-sinensal is employed as a GC–MS/GC–FID reference marker to assess oil purity, detect adulteration, and monitor freshness, oxidation, and product aging; in research, its reactive aldehyde functionality enables derivative synthesis (Schiff bases, acetals) and serves as a model for fragrance microencapsulation and controlled release; additionally, in vitro reports suggest antimicrobial or insect-repellent potential for citrus aldehydes (including β-sinensal), but practical use requires safety evaluation and regulatory compliance; store protected from light/oxygen and use in line with IFRA guidance and applicable food regulations.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 436.39
    methanol 329.63
    isopropanol 261.89
    water 0.03
    ethyl acetate 749.8
    n-propanol 345.07
    acetone 140.8
    n-butanol 367.45
    acetonitrile 209.81
    DMF 90.98
    toluene 384.87
    isobutanol 178.05
    1,4-dioxane 829.26
    methyl acetate 320.39
    THF 781.26
    2-butanone 409.73
    n-pentanol 323.24
    sec-butanol 347.47
    n-hexane 71.81
    ethylene glycol 12.23
    NMP 87.09
    cyclohexane 85.42
    DMSO 136.4
    n-butyl acetate 514.4
    n-octanol 68.26
    chloroform 910.01
    n-propyl acetate 377.98
    acetic acid 111.9
    dichloromethane 801.22
    cyclohexanone 365.48
    propylene glycol 49.5
    isopropyl acetate 407.49
    DMAc 221.71
    2-ethoxyethanol 387.0
    isopentanol 298.08
    n-heptane 35.08
    ethyl formate 158.49
    1,2-dichloroethane 557.61
    n-hexanol 323.05
    2-methoxyethanol 407.88
    isobutyl acetate 225.26
    tetrachloromethane 93.56
    n-pentyl acetate 193.59
    transcutol 1963.41
    n-heptanol 93.21
    ethylbenzene 210.98
    MIBK 256.22
    2-propoxyethanol 412.56
    tert-butanol 303.4
    MTBE 585.28
    2-butoxyethanol 191.43
    propionic acid 113.5
    o-xylene 175.02
    formic acid 29.54
    diethyl ether 1023.0
    m-xylene 232.38
    p-xylene 185.63
    chlorobenzene 239.35
    dimethyl carbonate 52.35
    n-octane 9.59
    formamide 58.75
    cyclopentanone 215.58
    2-pentanone 394.6
    anisole 383.41
    cyclopentyl methyl ether 391.91
    gamma-butyrolactone 219.22
    1-methoxy-2-propanol 323.63
    pyridine 604.14
    3-pentanone 275.92
    furfural 265.73
    n-dodecane 5.14
    diethylene glycol 147.26
    diisopropyl ether 208.14
    tert-amyl alcohol 345.7
    acetylacetone 258.87
    n-hexadecane 6.14
    acetophenone 248.78
    methyl propionate 256.3
    isopentyl acetate 449.74
    trichloroethylene 835.46
    n-nonanol 69.26
    cyclohexanol 225.84
    benzyl alcohol 207.27
    2-ethylhexanol 207.36
    isooctanol 87.21
    dipropyl ether 407.6
    1,2-dichlorobenzene 213.65
    ethyl lactate 92.4
    propylene carbonate 164.46
    n-methylformamide 78.04
    2-pentanol 300.39
    n-pentane 50.03
    1-propoxy-2-propanol 377.15
    1-methoxy-2-propyl acetate 450.96
    2-(2-methoxypropoxy) propanol 265.93
    mesitylene 125.2
    ε-caprolactone 382.99
    p-cymene 97.73
    epichlorohydrin 596.42
    1,1,1-trichloroethane 409.74
    2-aminoethanol 68.47
    morpholine-4-carbaldehyde 253.8
    sulfolane 165.63
    2,2,4-trimethylpentane 32.1
    2-methyltetrahydrofuran 750.43
    n-hexyl acetate 227.68
    isooctane 25.67
    2-(2-butoxyethoxy)ethanol 363.58
    sec-butyl acetate 346.38
    tert-butyl acetate 395.43
    decalin 46.01
    glycerin 51.71
    diglyme 710.91
    acrylic acid 60.21
    isopropyl myristate 90.38
    n-butyric acid 295.16
    acetyl acetate 226.9
    di(2-ethylhexyl) phthalate 78.86
    ethyl propionate 320.91
    nitromethane 170.51
    1,2-diethoxyethane 871.48
    benzonitrile 203.56
    trioctyl phosphate 42.65
    1-bromopropane 492.89
    gamma-valerolactone 412.77
    n-decanol 48.52
    triethyl phosphate 124.69
    4-methyl-2-pentanol 152.76
    propionitrile 240.32
    vinylene carbonate 138.47
    1,1,2-trichlorotrifluoroethane 205.57
    DMS 149.09
    cumene 122.37
    2-octanol 56.73
    2-hexanone 381.29
    octyl acetate 94.11
    limonene 150.42
    1,2-dimethoxyethane 723.29
    ethyl orthosilicate 149.87
    tributyl phosphate 67.8
    diacetone alcohol 271.5
    N,N-dimethylaniline 214.65
    acrylonitrile 179.74
    aniline 254.07
    1,3-propanediol 153.79
    bromobenzene 277.28
    dibromomethane 582.6
    1,1,2,2-tetrachloroethane 677.99
    2-methyl-cyclohexyl acetate 241.56
    tetrabutyl urea 82.14
    diisobutyl methanol 126.54
    2-phenylethanol 231.72
    styrene 249.57
    dioctyl adipate 134.76
    dimethyl sulfate 55.02
    ethyl butyrate 422.1
    methyl lactate 66.05
    butyl lactate 119.06
    diethyl carbonate 215.98
    propanediol butyl ether 132.84
    triethyl orthoformate 274.4
    p-tert-butyltoluene 93.81
    methyl 4-tert-butylbenzoate 171.09
    morpholine 1052.89
    tert-butylamine 226.59
    n-dodecanol 35.41
    dimethoxymethane 237.24
    ethylene carbonate 128.94
    cyrene 145.96
    2-ethoxyethyl acetate 331.7
    2-ethylhexyl acetate 357.35
    1,2,4-trichlorobenzene 239.59
    4-methylpyridine 517.59
    dibutyl ether 240.9
    2,6-dimethyl-4-heptanol 126.54
    DEF 323.53
    dimethyl isosorbide 439.59
    tetrachloroethylene 372.22
    eugenol 162.06
    triacetin 198.76
    span 80 177.8
    1,4-butanediol 54.78
    1,1-dichloroethane 474.61
    2-methyl-1-pentanol 299.55
    methyl formate 42.98
    2-methyl-1-butanol 270.12
    n-decane 10.98
    butyronitrile 351.21
    3,7-dimethyl-1-octanol 119.91
    1-chlorooctane 64.85
    1-chlorotetradecane 21.45
    n-nonane 10.65
    undecane 7.02
    tert-butylcyclohexane 46.66
    cyclooctane 29.89
    cyclopentanol 119.34
    tetrahydropyran 1113.09
    tert-amyl methyl ether 449.08
    2,5,8-trioxanonane 470.59
    1-hexene 317.46
    2-isopropoxyethanol 275.68
    2,2,2-trifluoroethanol 20.18
    methyl butyrate 380.95

    Scent© AI

1 of 4
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
Name CAS Botanical Proportion
Clementine (Italy) 1 Citrus clementina Hort. ex Tan., (C. deliciosa Ten. var. Clementina) 0.3%
Mandarin (Italy) 1 8008-31-9 Citrus deliciosa Tenore (C. reticulata Blanco, cv.mandarin), fam. Rutaceae 0.29%
Tangerine (USA-Florida) 2 8008-31-9 Citrus reticulata Blanco, cultivar Dancy, fam. Rutaceae 0.1%
Clementine (Italy) 3c Citrus clementina Hort. ex Tan., cultivar Comune, fam. Rutaceae 0.56%