2-Decenal

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  • Identifiers

    CAS number
    25447-70-5

    Molecular formula
    C10H18O

    SMILES
    CCCCCCC/C=C/C=O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Green 87.54%
    Fatty 87.52%
    Waxy 80.0%
    Citrus 79.04%
    Fruity 73.27%
    Aldehydic 72.36%
    Orange 64.04%
    Fresh 63.31%
    Cucumber 61.69%
    Melon 57.18%

    Scent© AI

  • Properties

    XLogP3-AA
    3.7

    Molecular weight
    154.25 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Melting point expt.

    • -8.92 °C. @ 760.00 mm Hg

    Boiling point

    • 78.00 to 80.00 °C. @ 3.00 mm Hg

    Flash point est.
    90.9 ˚C

    Solubility expt.

    • Soluble in most fixed oils; Insoluble in water
    • Soluble (in ethanol)

  • Synonyms

    • trans-2-Decenal
    • (E)-Dec-2-enal
    • 3913-81-3
    • decenal
    • 2-DECENAL
    • (E)-2-Decenal
    • 2-Decenal, (2E)-
    • 3-Heptylacrolein
    • Decenaldehyde
    • (2E)-2-Decenal
    • 2-Decen-1-al
    • Decylenic aldehyde
    • 2-Decenal, (E)-
    • 3913-71-1
    • FEMA No. 2366
    • trans-Dec-2-enal
    • (2E)-decenal
    • TRANS-2-DECEN-1-AL
    • 25447-70-5
    • EINECS 223-472-1
    • NSC 20747
    • E93S23U2BU
    • DTXSID5047035
    • AI3-36267
    • EINECS 223-474-2
    • 2-DECENAL [FHFI]
    • DECENALDEHYDE, TRANS-
    • DTXCID3027035
    • TRANS-2-DECEN-1-AL 10% IN ETHANOL
    • (E)-2-DECENAL [FCC]
    • NSC-20747
    • MFCD00014679
    • DTXSID8052065
    • UNII-E93S23U2BU
    • 2(e)-decenal
    • (E)2Decenal
    • dec-(e)-2-enal
    • 2Decenal, (E)
    • Dec-2(E)-enal
    • (2E)-dec-2-enal
    • 2Decenal, (2E)
    • Dec-2-enal, (E)
    • trans-2-Decenyl Aldehyde
    • (2E)-2-Decenal #
    • t-2-DCA
    • (E)-dec-2-en-1-al
    • SCHEMBL872778
    • CHEMBL507518
    • DTXCID3030632
    • FEMA 2366
    • CHEBI:133455
    • DAA91381
    • Tox21_302302
    • LMFA06000053
    • trans-2-Decenal, analytical standard
    • AKOS015839092
    • CS-W016267
    • HY-W015551
    • trans-2-Decenal, >=95.0% (GC)
    • trans-2-Decenal, >=95%, FCC, FG
    • NCGC00256196-01
    • AS-44363
    • LS-13867
    • CAS-3913-81-3
    • DB-372104
    • D1406
    • D1642
    • NS00012195
    • Q27277030
    • trans-2-Decenal (contains trans-2-Decenal Diethyl Acetal)
    • 223-472-1
    • 223-474-2

  • Applications

    2-Decenal (CAS 25447-70-5) is a long-chain unsaturated aldehyde with a coriander–citrus, green–fatty odor, widely used as a flavor ingredient in beverages, confectionery, baked goods, dairy analogs and savory seasonings, and in perfumery, soaps, detergents and household cleaners to impart fresh citrus/green notes; in organic synthesis it serves as a versatile building block for reductions/hydrogenation, oxidation, epoxidation, Schiff-base and aldol reactions to access allylic alcohols, unsaturated acids, epoxides and intermediates for fragrance, pharmaceutical and agrochemical manufacture; in food science and quality control it is employed as a GC/GC–MS standard and as a marker of lipid oxidation (rancidity) in oils, meats and snacks, and the inherent antimicrobial/antifungal tendencies of unsaturated aldehydes are being explored for active packaging, antimicrobial coatings and bio-based preservative systems.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 5139.18
    methanol 4113.23
    isopropanol 4749.11
    water 0.03
    ethyl acetate 5229.7
    n-propanol 4361.28
    acetone 8260.99
    n-butanol 3970.0
    acetonitrile 3267.95
    DMF 3551.76
    toluene 1558.33
    isobutanol 3012.0
    1,4-dioxane 4299.71
    methyl acetate 2823.34
    THF 7899.73
    2-butanone 5762.36
    n-pentanol 2576.3
    sec-butanol 3405.79
    n-hexane 1972.52
    ethylene glycol 285.31
    NMP 2234.38
    cyclohexane 1832.95
    DMSO 6176.16
    n-butyl acetate 4093.05
    n-octanol 715.77
    chloroform 4917.6
    n-propyl acetate 3195.0
    acetic acid 1761.54
    dichloromethane 6056.81
    cyclohexanone 5936.33
    propylene glycol 681.72
    isopropyl acetate 2693.72
    DMAc 1527.86
    2-ethoxyethanol 2071.64
    isopentanol 3287.04
    n-heptane 762.78
    ethyl formate 1655.2
    1,2-dichloroethane 5460.78
    n-hexanol 2898.68
    2-methoxyethanol 3744.65
    isobutyl acetate 1527.02
    tetrachloromethane 1019.36
    n-pentyl acetate 1508.87
    transcutol 7068.71
    n-heptanol 808.23
    ethylbenzene 759.26
    MIBK 2301.18
    2-propoxyethanol 3132.21
    tert-butanol 4643.17
    MTBE 4664.73
    2-butoxyethanol 1270.44
    propionic acid 1918.3
    o-xylene 671.32
    formic acid 244.9
    diethyl ether 7017.75
    m-xylene 959.18
    p-xylene 825.63
    chlorobenzene 1649.27
    dimethyl carbonate 479.48
    n-octane 199.4
    formamide 492.58
    cyclopentanone 5379.16
    2-pentanone 5450.25
    anisole 1183.16
    cyclopentyl methyl ether 4664.21
    gamma-butyrolactone 4210.39
    1-methoxy-2-propanol 3259.33
    pyridine 3862.26
    3-pentanone 2943.1
    furfural 2124.97
    n-dodecane 85.53
    diethylene glycol 1263.81
    diisopropyl ether 1632.36
    tert-amyl alcohol 3024.44
    acetylacetone 2966.19
    n-hexadecane 102.57
    acetophenone 975.77
    methyl propionate 2841.08
    isopentyl acetate 2886.0
    trichloroethylene 6386.89
    n-nonanol 598.64
    cyclohexanol 3187.3
    benzyl alcohol 935.53
    2-ethylhexanol 1743.73
    isooctanol 677.86
    dipropyl ether 3393.15
    1,2-dichlorobenzene 1215.32
    ethyl lactate 605.23
    propylene carbonate 1775.78
    n-methylformamide 1760.62
    2-pentanol 3136.1
    n-pentane 1176.74
    1-propoxy-2-propanol 2905.43
    1-methoxy-2-propyl acetate 2275.54
    2-(2-methoxypropoxy) propanol 872.85
    mesitylene 591.2
    ε-caprolactone 3503.0
    p-cymene 469.35
    epichlorohydrin 5164.65
    1,1,1-trichloroethane 4064.81
    2-aminoethanol 1004.37
    morpholine-4-carbaldehyde 2228.78
    sulfolane 4028.55
    2,2,4-trimethylpentane 269.87
    2-methyltetrahydrofuran 7162.37
    n-hexyl acetate 1696.23
    isooctane 272.62
    2-(2-butoxyethoxy)ethanol 1400.41
    sec-butyl acetate 1775.51
    tert-butyl acetate 2425.0
    decalin 450.34
    glycerin 568.31
    diglyme 2763.05
    acrylic acid 1050.71
    isopropyl myristate 542.15
    n-butyric acid 3764.12
    acetyl acetate 1356.15
    di(2-ethylhexyl) phthalate 331.96
    ethyl propionate 2198.57
    nitromethane 2753.26
    1,2-diethoxyethane 3909.84
    benzonitrile 1324.54
    trioctyl phosphate 286.43
    1-bromopropane 4874.0
    gamma-valerolactone 4510.94
    n-decanol 421.81
    triethyl phosphate 497.53
    4-methyl-2-pentanol 1232.6
    propionitrile 3121.5
    vinylene carbonate 1341.85
    1,1,2-trichlorotrifluoroethane 2287.11
    DMS 851.03
    cumene 445.78
    2-octanol 575.45
    2-hexanone 3485.1
    octyl acetate 615.4
    limonene 1030.14
    1,2-dimethoxyethane 3816.89
    ethyl orthosilicate 559.59
    tributyl phosphate 418.91
    diacetone alcohol 2068.53
    N,N-dimethylaniline 637.26
    acrylonitrile 2709.57
    aniline 1625.67
    1,3-propanediol 1678.12
    bromobenzene 1901.19
    dibromomethane 4959.26
    1,1,2,2-tetrachloroethane 4804.51
    2-methyl-cyclohexyl acetate 1082.07
    tetrabutyl urea 504.55
    diisobutyl methanol 937.08
    2-phenylethanol 1057.33
    styrene 1077.48
    dioctyl adipate 673.31
    dimethyl sulfate 659.25
    ethyl butyrate 2318.97
    methyl lactate 663.98
    butyl lactate 838.28
    diethyl carbonate 957.6
    propanediol butyl ether 908.17
    triethyl orthoformate 1153.83
    p-tert-butyltoluene 456.61
    methyl 4-tert-butylbenzoate 625.59
    morpholine 6408.2
    tert-butylamine 3342.3
    n-dodecanol 315.14
    dimethoxymethane 2810.18
    ethylene carbonate 1291.16
    cyrene 596.81
    2-ethoxyethyl acetate 1651.39
    2-ethylhexyl acetate 2157.88
    1,2,4-trichlorobenzene 1224.54
    4-methylpyridine 3465.73
    dibutyl ether 2301.04
    2,6-dimethyl-4-heptanol 937.08
    DEF 3677.71
    dimethyl isosorbide 1453.99
    tetrachloroethylene 3121.86
    eugenol 598.56
    triacetin 928.76
    span 80 872.03
    1,4-butanediol 523.9
    1,1-dichloroethane 5748.9
    2-methyl-1-pentanol 1896.43
    methyl formate 945.14
    2-methyl-1-butanol 2665.4
    n-decane 187.09
    butyronitrile 3998.11
    3,7-dimethyl-1-octanol 858.42
    1-chlorooctane 714.31
    1-chlorotetradecane 213.09
    n-nonane 227.08
    undecane 121.42
    tert-butylcyclohexane 422.63
    cyclooctane 490.1
    cyclopentanol 3030.4
    tetrahydropyran 8580.46
    tert-amyl methyl ether 2632.37
    2,5,8-trioxanonane 1451.0
    1-hexene 4503.51
    2-isopropoxyethanol 1577.15
    2,2,2-trifluoroethanol 286.52
    methyl butyrate 3039.53

    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

Botanical

Name CAS Botanical Proportion
Cilantro (Coriander leaf) 3 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.5%
Tagetes (India) 3 8016-84-0 Tagetes minuta L. (Marigold), fam. Asteraceae (Compositae) 0.28%
Cilantro (Coriander leaf) 5a 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.68%
Cilantro (Coriander leaf) 5b 8008-52-4 Coriandrum sativum L., fam. Apiaceae (Umbelliferae) 0.01%