Carquejol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    23734-06-7

    Molecular formula
    C10H14O

    SMILES
    CC(=C)C1C(C=CCC1=C)O

  • Odor profile

    Herbal 45.04%
    Mint 44.54%
    Spicy 42.46%
    Green 38.56%
    Fruity 37.32%
    Woody 33.63%
    Fresh 26.43%
    Citrus 23.82%
    Cooling 23.59%
    Sweet 23.31%

    Scent© AI

  • Properties

    XLogP3-AA
    2.2

    pKa est.
    9.0 (weak base)

    Molecular weight
    150.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately slow

    Boiling point est.
    221°C

    Flash point est.
    85.8 ˚C

  • Synonyms

    • Carquejol
    • 23734-06-7
    • 5-methylidene-6-prop-1-en-2-ylcyclohex-2-en-1-ol
    • BRN 2518316
    • 2-Cyclohexen-1-ol, 5-methylene-6-(1-methylethenyl)-, (1S-cis)-
    • o-MENTHA-1(7),4,8-TRIEN-3-OL, (2R,3S)-
    • 4-06-00-03328 (Beilstein Handbook Reference)
    • DTXSID30946528
    • CBYONFNNEHVJSW-UHFFFAOYSA-N
    • 5-METHYLIDENE-6-(PROP-1-EN-2-YL)CYCLOHEX-2-EN-1-OL

  • Applications

    Carquejol (CAS 23734-06-7) is a natural monoterpenoid alcohol reported in the essential oil of carqueja (Baccharis trimera) and other Asteraceae, and thus attracts interest across fragrance, analytical, and bioactivity applications: in scent work it is investigated as a nuance-adding ingredient imparting herbal, resinous, slightly camphor–mint facets for fine fragrances, soaps, deodorants, and personal care, or for recreating the olfactory profile of carqueja oil; in analysis it serves as a reference/standard in GC–MS and chiral GC for qualitative–quantitative profiling, essential-oil quality control, and herbal standardization, and as a useful handle in phytochemistry and terpene biosynthesis studies; in bioactivity research it has been evaluated in vitro for antibacterial, antifungal, antiparasitic, antioxidant, and anti-inflammatory effects, suggesting potential roles in natural preservation, active packaging, and botanically derived biopesticides (e.g., repellency/inhibition against some insects) alone or in synergy with other terpenes, although it is not an approved therapeutic; formulation approaches such as microencapsulation, cyclodextrin inclusion, and emulsification are used to improve volatility management, solubility, and oxidative stability, and the molecule is also employed as a chemical marker and a scaffold/precursor for semisynthesis or biotransformations to generate derivatives for fragrance and pharmacological screening, with use conditioned on safety/toxicity assessments and domain-specific regulations.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2230.2
    methanol 2276.42
    isopropanol 1698.57
    water 3.74
    ethyl acetate 1155.43
    n-propanol 1871.92
    acetone 1804.54
    n-butanol 1441.53
    acetonitrile 1744.58
    DMF 1115.64
    toluene 548.2
    isobutanol 1217.23
    1,4-dioxane 2886.16
    methyl acetate 1109.09
    THF 4465.4
    2-butanone 1217.16
    n-pentanol 851.87
    sec-butanol 1173.46
    n-hexane 262.25
    ethylene glycol 256.11
    NMP 1033.52
    cyclohexane 282.59
    DMSO 1458.6
    n-butyl acetate 672.18
    n-octanol 366.25
    chloroform 1436.0
    n-propyl acetate 512.1
    acetic acid 878.69
    dichloromethane 1228.32
    cyclohexanone 1392.49
    propylene glycol 313.68
    isopropyl acetate 599.39
    DMAc 422.42
    2-ethoxyethanol 773.37
    isopentanol 892.96
    n-heptane 156.25
    ethyl formate 664.09
    1,2-dichloroethane 900.93
    n-hexanol 1263.67
    2-methoxyethanol 1310.6
    isobutyl acetate 317.92
    tetrachloromethane 294.13
    n-pentyl acetate 343.37
    transcutol 1439.73
    n-heptanol 390.41
    ethylbenzene 181.35
    MIBK 611.26
    2-propoxyethanol 1272.25
    tert-butanol 1458.96
    MTBE 1163.41
    2-butoxyethanol 498.54
    propionic acid 782.0
    o-xylene 217.68
    formic acid 328.55
    diethyl ether 1977.54
    m-xylene 352.89
    p-xylene 202.52
    chlorobenzene 455.51
    dimethyl carbonate 265.59
    n-octane 55.35
    formamide 352.61
    cyclopentanone 1848.99
    2-pentanone 1151.29
    anisole 367.03
    cyclopentyl methyl ether 1595.96
    gamma-butyrolactone 1896.9
    1-methoxy-2-propanol 1025.73
    pyridine 964.67
    3-pentanone 674.94
    furfural 822.58
    n-dodecane 36.95
    diethylene glycol 682.41
    diisopropyl ether 432.18
    tert-amyl alcohol 813.0
    acetylacetone 761.35
    n-hexadecane 41.78
    acetophenone 234.31
    methyl propionate 732.28
    isopentyl acetate 505.88
    trichloroethylene 1195.36
    n-nonanol 276.13
    cyclohexanol 973.79
    benzyl alcohol 281.42
    2-ethylhexanol 459.9
    isooctanol 281.22
    dipropyl ether 621.03
    1,2-dichlorobenzene 271.16
    ethyl lactate 177.66
    propylene carbonate 739.49
    n-methylformamide 810.95
    2-pentanol 941.03
    n-pentane 332.58
    1-propoxy-2-propanol 745.49
    1-methoxy-2-propyl acetate 535.47
    2-(2-methoxypropoxy) propanol 288.21
    mesitylene 204.76
    ε-caprolactone 1010.02
    p-cymene 125.61
    epichlorohydrin 1854.65
    1,1,1-trichloroethane 837.69
    2-aminoethanol 557.2
    morpholine-4-carbaldehyde 921.64
    sulfolane 1438.74
    2,2,4-trimethylpentane 88.35
    2-methyltetrahydrofuran 2711.84
    n-hexyl acetate 503.72
    isooctane 97.98
    2-(2-butoxyethoxy)ethanol 496.49
    sec-butyl acetate 302.22
    tert-butyl acetate 586.78
    decalin 83.11
    glycerin 336.32
    diglyme 794.13
    acrylic acid 503.82
    isopropyl myristate 166.16
    n-butyric acid 906.15
    acetyl acetate 419.7
    di(2-ethylhexyl) phthalate 120.98
    ethyl propionate 373.67
    nitromethane 1287.22
    1,2-diethoxyethane 635.48
    benzonitrile 393.13
    trioctyl phosphate 115.2
    1-bromopropane 897.35
    gamma-valerolactone 1598.49
    n-decanol 197.88
    triethyl phosphate 116.84
    4-methyl-2-pentanol 431.39
    propionitrile 1115.71
    vinylene carbonate 526.4
    1,1,2-trichlorotrifluoroethane 546.31
    DMS 249.0
    cumene 125.33
    2-octanol 274.92
    2-hexanone 629.06
    octyl acetate 212.52
    limonene 224.42
    1,2-dimethoxyethane 1123.38
    ethyl orthosilicate 122.34
    tributyl phosphate 127.16
    diacetone alcohol 578.51
    N,N-dimethylaniline 189.4
    acrylonitrile 901.24
    aniline 504.44
    1,3-propanediol 783.42
    bromobenzene 420.24
    dibromomethane 968.59
    1,1,2,2-tetrachloroethane 801.82
    2-methyl-cyclohexyl acetate 235.23
    tetrabutyl urea 148.03
    diisobutyl methanol 229.24
    2-phenylethanol 360.4
    styrene 213.07
    dioctyl adipate 176.63
    dimethyl sulfate 320.27
    ethyl butyrate 365.15
    methyl lactate 268.18
    butyl lactate 207.87
    diethyl carbonate 179.44
    propanediol butyl ether 379.03
    triethyl orthoformate 219.44
    p-tert-butyltoluene 132.75
    methyl 4-tert-butylbenzoate 230.49
    morpholine 2720.36
    tert-butylamine 922.65
    n-dodecanol 150.51
    dimethoxymethane 1124.27
    ethylene carbonate 510.45
    cyrene 245.84
    2-ethoxyethyl acetate 394.58
    2-ethylhexyl acetate 364.9
    1,2,4-trichlorobenzene 321.25
    4-methylpyridine 910.64
    dibutyl ether 379.64
    2,6-dimethyl-4-heptanol 229.24
    DEF 684.61
    dimethyl isosorbide 463.71
    tetrachloroethylene 542.46
    eugenol 217.97
    triacetin 247.68
    span 80 296.09
    1,4-butanediol 307.62
    1,1-dichloroethane 1175.86
    2-methyl-1-pentanol 521.41
    methyl formate 711.51
    2-methyl-1-butanol 862.74
    n-decane 67.76
    butyronitrile 1211.73
    3,7-dimethyl-1-octanol 282.82
    1-chlorooctane 232.04
    1-chlorotetradecane 81.06
    n-nonane 74.7
    undecane 48.48
    tert-butylcyclohexane 96.68
    cyclooctane 95.81
    cyclopentanol 1206.56
    tetrahydropyran 3021.47
    tert-amyl methyl ether 630.65
    2,5,8-trioxanonane 445.32
    1-hexene 643.23
    2-isopropoxyethanol 519.77
    2,2,2-trifluoroethanol 232.13
    methyl butyrate 498.94

    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
Baccharis genistelloides Baccharis genistelloides Pers. (Carqueja), fam. Asteraceae (Compositae) 2.03%