2-(4-Isopropylphenyl)propionaldehyde

Overview IFRA Request a quote

  • Identifiers

    CAS number
    34291-99-1

    Molecular formula
    C12H16O

    SMILES
    CC(C)C1=CC=C(C=C1)C(C)C=O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Green 93.6%
    Floral 77.95%
    Fresh 68.17%
    Aldehydic 55.17%
    Herbal 52.13%
    Leafy 50.72%
    Cortex 50.13%
    Woody 45.5%
    Muguet 43.11%
    Lily 42.58%

     

    Flavor
    Green 83.27%
    Floral 58.0%
    Fresh 55.86%
    Herbal 42.63%
    Leaf 35.21%
    Spicy 35.01%
    Oily 31.17%
    Musty 29.55%
    Citrus 28.85%
    Sharp 27.95%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    3.0

    pKa est.
    7.41 (neutral)

    Molecular weight
    176.25 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    246°C

    Flash point

    • 112.97 ˚C est.

  • Synonyms

    • 34291-99-1
    • 2-(4-Isopropylphenyl)propionaldehyde
    • 2-(4-propan-2-ylphenyl)propanal
    • 2-(4-Isopropylphenyl)propanal
    • Hydratropaldehyde, p-isopropyl-
    • para-Isopropyl hydroatropic aldehyde
    • EINECS 251-920-6
    • Q8U7B5H9FK
    • 2 [PARA ISOPROPYL PHENYL] PROPIONALDEHYDE
    • UNII-Q8U7B5H9FK
    • Benzeneacetaldehyde, alpha-methyl-4-(1-methylethyl)-
    • Benzeneacetaldehyde, .alpha.-methyl-4-(1-methylethyl)-
    • DTXSID80865710
    • 2-(4-ISOPROPYLPHENYL)PROPANALDEHYDE
    • .ALPHA.-(4-ISOPROPYLPHENYL)PROPIONALDEHYDE
    • 2-(4-ISOPROPYLPHENYL)PROPIONALDEHYDE, (+/-)-
    • .ALPHA.-METHYL-4-(1-METHYLETHYL)BENZENEACETALDEHYDE
    • SCHEMBL454717
    • isopropyl phenyl propionaldehyde
    • p-isopropyl hydratropic aldehyde
    • DTXCID20814085
    • IZQUWQPXCQLTJY-UHFFFAOYSA-N
    • 2-[4-(propan-2-yl)phenyl]propanal
    • AKOS006229722
    • DA-06642
    • NS00012769
    • ALPHA-(4-ISOPROPYLPHENYL)PROPIONALDEHYDE
    • EN300-1836907
    • alpha-methyl-4-(1-methylethyl)benzeneacetaldehyde
    • Q27287120
    • Z1198152281
    • 251-920-6

  • Applications

    2-(4-Isopropylphenyl)propionaldehyde (CAS 34291-99-1) is primarily used as a fragrance ingredient and synthetic intermediate in the perfume industry; it also serves as an aroma-building block for the development of other fragrance materials. In cosmetics and personal care, it may function as a fragrance component in products such as soaps, shampoos, and lotions. In household cleaning products, detergents, and air fresheners, it is used as a fragrance additive. In industrial manufacturing, it can be considered a synthetic intermediate for the preparation of other aroma chemicals. In polymers, plastics, coatings, and inks, it may be used as a fragrance or odorant additive or as an intermediate for scent-containing formulations. Its use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 620.44
    methanol 817.62
    isopropanol 350.55
    water 0.72
    ethyl acetate 1184.78
    n-propanol 527.55
    acetone 762.16
    n-butanol 471.75
    acetonitrile 908.16
    DMF 1026.67
    toluene 475.33
    isobutanol 298.84
    1,4-dioxane 1917.35
    methyl acetate 918.06
    THF 963.67
    2-butanone 799.6
    n-pentanol 312.59
    sec-butanol 271.14
    n-hexane 132.77
    ethylene glycol 78.73
    NMP 490.28
    cyclohexane 148.84
    DMSO 460.74
    n-butyl acetate 819.0
    n-octanol 78.24
    chloroform 2086.76
    n-propyl acetate 586.7
    acetic acid 497.57
    dichloromethane 1747.33
    cyclohexanone 1006.77
    propylene glycol 95.65
    isopropyl acetate 672.83
    DMAc 730.31
    2-ethoxyethanol 521.45
    isopentanol 418.73
    n-heptane 33.96
    ethyl formate 456.47
    1,2-dichloroethane 1774.61
    n-hexanol 437.74
    2-methoxyethanol 804.22
    isobutyl acetate 344.72
    tetrachloromethane 318.88
    n-pentyl acetate 234.8
    transcutol 2113.45
    n-heptanol 118.23
    ethylbenzene 248.07
    MIBK 406.0
    2-propoxyethanol 742.67
    tert-butanol 611.01
    MTBE 981.07
    2-butoxyethanol 262.51
    propionic acid 403.75
    o-xylene 242.05
    formic acid 173.86
    diethyl ether 1500.31
    m-xylene 262.73
    p-xylene 274.84
    chlorobenzene 684.33
    dimethyl carbonate 267.27
    n-octane 11.38
    formamide 371.35
    cyclopentanone 749.76
    2-pentanone 660.51
    anisole 607.67
    cyclopentyl methyl ether 579.22
    gamma-butyrolactone 795.07
    1-methoxy-2-propanol 507.12
    pyridine 1135.86
    3-pentanone 611.4
    furfural 827.83
    n-dodecane 6.7
    diethylene glycol 407.37
    diisopropyl ether 312.54
    tert-amyl alcohol 384.61
    acetylacetone 683.4
    n-hexadecane 8.13
    acetophenone 394.43
    methyl propionate 715.11
    isopentyl acetate 643.37
    trichloroethylene 2426.36
    n-nonanol 79.13
    cyclohexanol 353.98
    benzyl alcohol 318.82
    2-ethylhexanol 231.83
    isooctanol 102.22
    dipropyl ether 438.28
    1,2-dichlorobenzene 572.2
    ethyl lactate 169.4
    propylene carbonate 481.76
    n-methylformamide 574.47
    2-pentanol 274.05
    n-pentane 75.7
    1-propoxy-2-propanol 458.6
    1-methoxy-2-propyl acetate 689.46
    2-(2-methoxypropoxy) propanol 290.18
    mesitylene 176.41
    ε-caprolactone 824.71
    p-cymene 110.43
    epichlorohydrin 1339.01
    1,1,1-trichloroethane 1281.89
    2-aminoethanol 213.13
    morpholine-4-carbaldehyde 968.88
    sulfolane 705.49
    2,2,4-trimethylpentane 39.18
    2-methyltetrahydrofuran 809.64
    n-hexyl acetate 276.77
    isooctane 35.88
    2-(2-butoxyethoxy)ethanol 403.83
    sec-butyl acetate 407.51
    tert-butyl acetate 660.33
    decalin 70.5
    glycerin 149.34
    diglyme 931.94
    acrylic acid 303.01
    isopropyl myristate 109.14
    n-butyric acid 684.56
    acetyl acetate 547.04
    di(2-ethylhexyl) phthalate 103.1
    ethyl propionate 561.05
    nitromethane 956.4
    1,2-diethoxyethane 959.36
    benzonitrile 428.0
    trioctyl phosphate 65.5
    1-bromopropane 793.22
    gamma-valerolactone 1264.55
    n-decanol 57.81
    triethyl phosphate 173.74
    4-methyl-2-pentanol 191.74
    propionitrile 714.64
    vinylene carbonate 540.66
    1,1,2-trichlorotrifluoroethane 703.49
    DMS 358.17
    cumene 152.18
    2-octanol 67.02
    2-hexanone 524.59
    octyl acetate 121.31
    limonene 161.34
    1,2-dimethoxyethane 1250.71
    ethyl orthosilicate 192.08
    tributyl phosphate 107.5
    diacetone alcohol 458.94
    N,N-dimethylaniline 304.97
    acrylonitrile 779.38
    aniline 538.82
    1,3-propanediol 373.63
    bromobenzene 698.17
    dibromomethane 1178.71
    1,1,2,2-tetrachloroethane 1936.97
    2-methyl-cyclohexyl acetate 285.0
    tetrabutyl urea 116.35
    diisobutyl methanol 134.09
    2-phenylethanol 374.16
    styrene 356.29
    dioctyl adipate 161.23
    dimethyl sulfate 281.79
    ethyl butyrate 486.57
    methyl lactate 189.55
    butyl lactate 165.2
    diethyl carbonate 307.62
    propanediol butyl ether 172.61
    triethyl orthoformate 324.27
    p-tert-butyltoluene 111.7
    methyl 4-tert-butylbenzoate 221.78
    morpholine 1779.69
    tert-butylamine 442.24
    n-dodecanol 43.4
    dimethoxymethane 834.17
    ethylene carbonate 495.72
    cyrene 238.88
    2-ethoxyethyl acetate 444.17
    2-ethylhexyl acetate 503.5
    1,2,4-trichlorobenzene 615.2
    4-methylpyridine 1032.83
    dibutyl ether 231.81
    2,6-dimethyl-4-heptanol 134.09
    DEF 861.4
    dimethyl isosorbide 533.03
    tetrachloroethylene 1289.27
    eugenol 237.81
    triacetin 267.24
    span 80 200.89
    1,4-butanediol 123.32
    1,1-dichloroethane 1311.91
    2-methyl-1-pentanol 300.12
    methyl formate 358.14
    2-methyl-1-butanol 333.6
    n-decane 12.73
    butyronitrile 609.96
    3,7-dimethyl-1-octanol 121.65
    1-chlorooctane 79.9
    1-chlorotetradecane 29.36
    n-nonane 12.25
    undecane 8.86
    tert-butylcyclohexane 65.97
    cyclooctane 40.03
    cyclopentanol 239.79
    tetrahydropyran 1429.52
    tert-amyl methyl ether 538.64
    2,5,8-trioxanonane 528.59
    1-hexene 409.65
    2-isopropoxyethanol 351.12
    2,2,2-trifluoroethanol 168.15
    methyl butyrate 670.67

    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