1-p-Menthen-9-al

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  • Identifiers

    CAS number
    29548-14-9

    Molecular formula
    C10H16O

    SMILES
    CC1=CCC(CC1)C(C)C=O

    Safety labels

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 1220.0
    • Carbowax: 1620.0

  • Odor profile

    Herbal 66.25%
    Green 60.9%
    Aldehydic 54.75%
    Citrus 54.57%
    Fresh 49.04%
    Spicy 41.14%
    Floral 38.57%
    Fruity 35.0%
    Ozone 34.6%
    Woody 32.07%

    Scent© AI

  • Properties

    XLogP3-AA
    2.1

    pKa est.
    8.43 (weak base)

    Molecular weight
    152.23 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point est.
    213°C

    Flash point est.
    88.8 ˚C

    Solubility expt.

    • Insoluble in water; soluble in oils
    • Miscible at room temperature (in ethanol)

  • Synonyms

    • P-Menth-1-en-9-al
    • 29548-14-9
    • 1-p-Menthen-9-al
    • p-Menth-1-ene-9-al
    • 2-(4-methylcyclohex-3-en-1-yl)propanal
    • FEMA No. 3178
    • alpha,4-Dimethylcyclohex-3-ene-1-acetaldehyde
    • 25OS1Y59MM
    • 3-Cyclohexene-1-acetaldehyde, .alpha.,4-dimethyl-
    • EINECS 249-688-6
    • UNII-25OS1Y59MM
    • alpha,4-Dimethyl-3-cyclohexene-1-acetaldehyde
    • .alpha.,4-Dimethyl-3-cyclohexene-1-acetaldehyde
    • 3-Cyclohexene-1-acetaldehyde, alpha,4-dimethyl-
    • DTXSID00865494
    • 1-P-MENTHEN-9-AL [FHFI]
    • (+/-)-1-P-MENTHEN-9-AL
    • 3-CYCLOHEXENE-1-ACETALDEHYDE, .ALPHA., 4-DIMETHYL-
    • para-menth-1-en-9-al
    • 1-p-Menthene-9-al
    • 1-p-menth-1-ene-9-al
    • SCHEMBL998020
    • CHEBI:87568
    • DTXCID60813895
    • 2-(4-Methyl-3-cyclohexen-1-yl)propanal
    • DB-243028
    • NS00049045
    • .alpha.,4-Dimethyl-3-cyclohexen-1-acetaldehyde
    • Q27159737
    • 3-CYCLOHEXENE-1-ACETALDEHYDE, ALPHA, 4-DIMETHYL-

  • Applications

    1-p-Menthen-9-al (CAS 29548-14-9) is a monoterpenoid aldehyde used across fragrance, flavor, and synthesis: in fine fragrances and personal/home care it serves as a fresh green, minty–citrus, slightly woody top note that boosts diffusion, rounds citrus/herbal accords, and aids malodor masking in soaps, shampoos, detergents, candles, and air care; in flavors it contributes minty–herbal and citrus-peel nuances to confectionery, chewing gum, beverages, and oral-care products; in aroma chemistry its reactive aldehyde enables formation of oximes/imines and acetals, and reduction/oxidation to access p-menthane derivatives for tone adjustment, making it a useful intermediate in terpenoid synthesis; in R&D it is employed as an analytical reference (GC–MS), for sensory training, and structure–odor studies; handle as a typical aldehyde—prone to oxidation and base—using antioxidants, tight packaging, cool storage, and adhering to dose and IFRA/food limits appropriate to the application matrix.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 904.33
    methanol 804.36
    isopropanol 722.66
    water 0.93
    ethyl acetate 1088.62
    n-propanol 805.89
    acetone 834.41
    n-butanol 739.86
    acetonitrile 1228.11
    DMF 705.6
    toluene 642.14
    isobutanol 508.84
    1,4-dioxane 1564.84
    methyl acetate 914.23
    THF 1102.87
    2-butanone 1019.01
    n-pentanol 396.25
    sec-butanol 573.25
    n-hexane 57.39
    ethylene glycol 111.48
    NMP 475.68
    cyclohexane 123.62
    DMSO 722.1
    n-butyl acetate 778.88
    n-octanol 147.55
    chloroform 2445.52
    n-propyl acetate 517.89
    acetic acid 639.43
    dichloromethane 1884.2
    cyclohexanone 999.47
    propylene glycol 189.54
    isopropyl acetate 475.7
    DMAc 444.61
    2-ethoxyethanol 472.38
    isopentanol 597.62
    n-heptane 35.98
    ethyl formate 614.68
    1,2-dichloroethane 1102.15
    n-hexanol 528.9
    2-methoxyethanol 859.01
    isobutyl acetate 276.75
    tetrachloromethane 417.16
    n-pentyl acetate 280.17
    transcutol 2672.64
    n-heptanol 171.92
    ethylbenzene 249.33
    MIBK 335.74
    2-propoxyethanol 661.21
    tert-butanol 751.73
    MTBE 588.98
    2-butoxyethanol 341.11
    propionic acid 593.44
    o-xylene 309.17
    formic acid 242.56
    diethyl ether 808.47
    m-xylene 343.28
    p-xylene 296.22
    chlorobenzene 767.67
    dimethyl carbonate 198.76
    n-octane 11.42
    formamide 415.19
    cyclopentanone 863.63
    2-pentanone 685.2
    anisole 486.64
    cyclopentyl methyl ether 561.94
    gamma-butyrolactone 945.66
    1-methoxy-2-propanol 600.36
    pyridine 1581.96
    3-pentanone 485.28
    furfural 1039.47
    n-dodecane 7.41
    diethylene glycol 393.26
    diisopropyl ether 184.66
    tert-amyl alcohol 488.58
    acetylacetone 570.0
    n-hexadecane 8.95
    acetophenone 391.58
    methyl propionate 589.07
    isopentyl acetate 590.58
    trichloroethylene 2218.36
    n-nonanol 125.38
    cyclohexanol 524.41
    benzyl alcohol 403.36
    2-ethylhexanol 292.71
    isooctanol 147.81
    dipropyl ether 322.71
    1,2-dichlorobenzene 578.84
    ethyl lactate 163.07
    propylene carbonate 561.76
    n-methylformamide 615.76
    2-pentanol 450.13
    n-pentane 65.19
    1-propoxy-2-propanol 520.55
    1-methoxy-2-propyl acetate 577.0
    2-(2-methoxypropoxy) propanol 359.54
    mesitylene 188.64
    ε-caprolactone 856.59
    p-cymene 141.17
    epichlorohydrin 1299.97
    1,1,1-trichloroethane 1210.98
    2-aminoethanol 293.82
    morpholine-4-carbaldehyde 781.61
    sulfolane 693.72
    2,2,4-trimethylpentane 30.41
    2-methyltetrahydrofuran 984.07
    n-hexyl acetate 362.72
    isooctane 30.26
    2-(2-butoxyethoxy)ethanol 535.15
    sec-butyl acetate 332.25
    tert-butyl acetate 422.04
    decalin 48.57
    glycerin 222.23
    diglyme 1043.99
    acrylic acid 444.17
    isopropyl myristate 119.58
    n-butyric acid 906.15
    acetyl acetate 457.22
    di(2-ethylhexyl) phthalate 137.07
    ethyl propionate 392.93
    nitromethane 1136.94
    1,2-diethoxyethane 821.6
    benzonitrile 717.61
    trioctyl phosphate 82.36
    1-bromopropane 651.35
    gamma-valerolactone 1182.03
    n-decanol 88.0
    triethyl phosphate 141.27
    4-methyl-2-pentanol 235.08
    propionitrile 874.25
    vinylene carbonate 588.24
    1,1,2-trichlorotrifluoroethane 713.2
    DMS 314.1
    cumene 147.57
    2-octanol 104.7
    2-hexanone 489.15
    octyl acetate 146.69
    limonene 191.21
    1,2-dimethoxyethane 811.71
    ethyl orthosilicate 153.6
    tributyl phosphate 119.0
    diacetone alcohol 417.89
    N,N-dimethylaniline 250.97
    acrylonitrile 976.01
    aniline 780.21
    1,3-propanediol 504.09
    bromobenzene 760.53
    dibromomethane 1261.37
    1,1,2,2-tetrachloroethane 1521.25
    2-methyl-cyclohexyl acetate 260.76
    tetrabutyl urea 128.07
    diisobutyl methanol 160.94
    2-phenylethanol 420.17
    styrene 348.72
    dioctyl adipate 182.62
    dimethyl sulfate 220.46
    ethyl butyrate 467.05
    methyl lactate 211.26
    butyl lactate 221.95
    diethyl carbonate 286.97
    propanediol butyl ether 298.54
    triethyl orthoformate 279.17
    p-tert-butyltoluene 133.19
    methyl 4-tert-butylbenzoate 260.27
    morpholine 1729.94
    tert-butylamine 500.14
    n-dodecanol 62.18
    dimethoxymethane 467.56
    ethylene carbonate 486.55
    cyrene 235.95
    2-ethoxyethyl acetate 475.9
    2-ethylhexyl acetate 440.54
    1,2,4-trichlorobenzene 651.37
    4-methylpyridine 1248.83
    dibutyl ether 230.95
    2,6-dimethyl-4-heptanol 160.94
    DEF 613.21
    dimethyl isosorbide 511.7
    tetrachloroethylene 1071.2
    eugenol 267.58
    triacetin 337.99
    span 80 278.14
    1,4-butanediol 144.87
    1,1-dichloroethane 1285.89
    2-methyl-1-pentanol 338.29
    methyl formate 386.67
    2-methyl-1-butanol 491.63
    n-decane 15.15
    butyronitrile 847.37
    3,7-dimethyl-1-octanol 190.5
    1-chlorooctane 95.24
    1-chlorotetradecane 29.78
    n-nonane 14.69
    undecane 9.99
    tert-butylcyclohexane 45.65
    cyclooctane 36.39
    cyclopentanol 436.55
    tetrahydropyran 1388.1
    tert-amyl methyl ether 335.46
    2,5,8-trioxanonane 607.9
    1-hexene 261.19
    2-isopropoxyethanol 330.73
    2,2,2-trifluoroethanol 192.12
    methyl butyrate 558.1

    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

Botanical

Name CAS Botanical Proportion
Osmanthus absolute 68917-05-5 Osmanthus fragrans (Thunb.) Lour., fam. Oleaceae 0.05%
Narcissus poeticus absolute 8023-75-4 Narcissus poeticus L., fam. Amaryllidaceae 0.1%
Geranium (China, Yunnan) 6 8000-46-2 Pelargonium graveolens L'Herit. ex Aiton, fam. Geraniaceae 0.11%
Rose (Bulgaria) 2 8007-01-0 Rosa damascena Mill., fam. Rosaceae 0.01%
Gingergrass (India) 5 Cymbopogon martini Stapf., var. sofia, fam. Poaceae (Gramineae) 0.04%
Vassoura (Brazil) 2 Baccharis dracunculifolia DC., fam. Asteraceae (Compositae) 0.01%
Abies ernestii (China) Abies ernestii Rehd., fam. Pinaceae 0.23%
Valeriana javanica root (Indonesia) Valeriana javanica Blume, fam. Valerianaceae 0.05%