1-Cyclopentene-1-carboxylic acid

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  • Identifiers

    CAS number
    1560-11-8

    Molecular formula
    C6H8O2

    SMILES
    C1CC=C(C1)C(=O)O

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Fruity 62.95%
    Caramellic 38.97%
    Sour 30.48%
    Cheesy 29.75%
    Sweet 27.78%
    Burnt 25.39%
    Spicy 25.11%
    Herbal 25.1%
    Sharp 25.06%
    Tobacco 23.89%

     

    Flavor
    Odorless 30.96%
    Faint 24.58%
    Sour 23.6%
    Maple syrup 21.6%
    Urine 21.31%
    Phenolic 20.15%
    Fenugreek 20.12%
    Cotton candy 20.09%
    Extremely sweet 19.93%
    Caramel 19.81%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.2

    pKa est.
    7.97 (neutral)

    Molecular weight
    112.13 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Slow

    Boiling point est.
    230°C

    Flash point

    • 111.92 ˚C est.

  • Synonyms

    • 1-Cyclopentenecarboxylic acid
    • 1560-11-8
    • 1-Cyclopentene-1-carboxylic acid
    • 1-Cyclopentenylcarboxylic acid
    • CB 1684
    • BRN 1446347
    • DTXSID90166023
    • 4-09-00-00109 (Beilstein Handbook Reference)
    • NSC 44968
    • RefChem:75511
    • DTXCID3088514
    • 626-080-2
    • PYRZPBDTPRQYKG-UHFFFAOYSA-N
    • cyclopentene-1-carboxylic acid
    • Isoaleprolic acid
    • cyclopent-1-ene-1-carboxylic acid
    • Cyclopent-1-enecarboxylic acid
    • MFCD00001396
    • cyclopentenoic acid
    • Isoaleprolic Acid; NSC 44968
    • Cyclopentenecarboxylic acid
    • 1-Cyclopentenecarboxylicacid
    • cyclopentaencarboxylic acid
    • cyclopentene carboxylic acid
    • ghl.PD_Mitscher_leg0.28
    • SCHEMBL502595
    • 1-cyclopentene carboxylic acid
    • CHEMBL115179
    • orb2940002
    • SCHEMBL6965531
    • SCHEMBL7230591
    • SCHEMBL9433880
    • NSC44968
    • STR05004
    • 1-Cyclopentenecarboxylic acid, 98%
    • EBC-04257
    • NSC-44968
    • (1-cyclopenten-1-yl)-carboxylic acid
    • AKOS005259110
    • CS-W005540
    • FC70146
    • HY-W005540
    • BP-10251
    • SY027520
    • DB-005714
    • C1702
    • EN300-98600
    • 560C118
    • F123800
    • Z1205493596
    • 1560-11-8

  • Applications

    Chemical name: 1-Cyclopentene-1-carboxylic acid; CAS number: 1560-11-8. 1-Cyclopentene-1-carboxylic acid is an unsaturated carboxylic acid that serves mainly as an organic synthesis intermediate to prepare cyclopentenyl derivatives and cyclopentenyl esters; in industry it is used as a monomer or comonomer in polymer and unsaturated polyester resin systems; in coatings and inks it can act as a reactive monomer to enhance crosslinking; in adhesives it provides a building block for specialty polymer networks; and in pharmaceuticals it is used as an intermediate in the synthesis of more complex molecules.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 509.08
    methanol 1101.7
    isopropanol 284.47
    water 17.12
    ethyl acetate 220.4
    n-propanol 295.19
    acetone 233.25
    n-butanol 242.03
    acetonitrile 127.21
    DMF 540.08
    toluene 20.37
    isobutanol 203.92
    1,4-dioxane 423.65
    methyl acetate 191.81
    THF 542.53
    2-butanone 158.69
    n-pentanol 235.0
    sec-butanol 196.09
    n-hexane 11.42
    ethylene glycol 206.59
    NMP 554.56
    cyclohexane 6.53
    DMSO 782.13
    n-butyl acetate 173.36
    n-octanol 134.01
    chloroform 148.22
    n-propyl acetate 149.9
    acetic acid 670.79
    dichloromethane 150.45
    cyclohexanone 233.07
    propylene glycol 184.14
    isopropyl acetate 137.74
    DMAc 211.54
    2-ethoxyethanol 375.41
    isopentanol 216.57
    n-heptane 8.32
    ethyl formate 159.93
    1,2-dichloroethane 129.46
    n-hexanol 228.19
    2-methoxyethanol 573.0
    isobutyl acetate 88.97
    tetrachloromethane 19.63
    n-pentyl acetate 136.32
    transcutol 1326.84
    n-heptanol 124.87
    ethylbenzene 20.51
    MIBK 164.77
    2-propoxyethanol 398.75
    tert-butanol 337.22
    MTBE 134.06
    2-butoxyethanol 248.56
    propionic acid 343.78
    o-xylene 24.8
    formic acid 514.07
    diethyl ether 140.14
    m-xylene 33.97
    p-xylene 27.07
    chlorobenzene 61.14
    dimethyl carbonate 90.35
    n-octane 5.67
    formamide 574.26
    cyclopentanone 332.27
    2-pentanone 185.73
    anisole 86.72
    cyclopentyl methyl ether 190.48
    gamma-butyrolactone 575.23
    1-methoxy-2-propanol 430.02
    pyridine 140.7
    3-pentanone 95.65
    furfural 378.05
    n-dodecane 6.36
    diethylene glycol 371.87
    diisopropyl ether 56.78
    tert-amyl alcohol 226.03
    acetylacetone 220.78
    n-hexadecane 6.94
    acetophenone 100.16
    methyl propionate 175.35
    isopentyl acetate 147.9
    trichloroethylene 246.08
    n-nonanol 111.86
    cyclohexanol 138.85
    benzyl alcohol 109.87
    2-ethylhexanol 101.99
    isooctanol 100.76
    dipropyl ether 75.94
    1,2-dichlorobenzene 72.61
    ethyl lactate 95.3
    propylene carbonate 273.32
    n-methylformamide 428.89
    2-pentanol 183.28
    n-pentane 10.26
    1-propoxy-2-propanol 255.66
    1-methoxy-2-propyl acetate 191.61
    2-(2-methoxypropoxy) propanol 217.32
    mesitylene 28.31
    ε-caprolactone 282.59
    p-cymene 24.16
    epichlorohydrin 451.15
    1,1,1-trichloroethane 71.73
    2-aminoethanol 341.26
    morpholine-4-carbaldehyde 492.89
    sulfolane 626.16
    2,2,4-trimethylpentane 8.82
    2-methyltetrahydrofuran 326.48
    n-hexyl acetate 208.33
    isooctane 11.3
    2-(2-butoxyethoxy)ethanol 388.53
    sec-butyl acetate 93.97
    tert-butyl acetate 169.75
    decalin 7.68
    glycerin 282.65
    diglyme 516.35
    acrylic acid 335.21
    isopropyl myristate 73.04
    n-butyric acid 333.14
    acetyl acetate 117.0
    di(2-ethylhexyl) phthalate 75.3
    ethyl propionate 116.61
    nitromethane 665.27
    1,2-diethoxyethane 236.4
    benzonitrile 120.46
    trioctyl phosphate 64.95
    1-bromopropane 52.61
    gamma-valerolactone 500.03
    n-decanol 82.41
    triethyl phosphate 47.51
    4-methyl-2-pentanol 132.24
    propionitrile 109.9
    vinylene carbonate 229.57
    1,1,2-trichlorotrifluoroethane 278.14
    DMS 140.93
    cumene 23.67
    2-octanol 92.18
    2-hexanone 148.78
    octyl acetate 103.31
    limonene 35.57
    1,2-dimethoxyethane 365.05
    ethyl orthosilicate 45.45
    tributyl phosphate 74.12
    diacetone alcohol 261.46
    N,N-dimethylaniline 64.05
    acrylonitrile 168.8
    aniline 77.51
    1,3-propanediol 387.9
    bromobenzene 43.7
    dibromomethane 84.54
    1,1,2,2-tetrachloroethane 194.68
    2-methyl-cyclohexyl acetate 87.84
    tetrabutyl urea 92.57
    diisobutyl methanol 67.5
    2-phenylethanol 124.69
    styrene 22.95
    dioctyl adipate 98.55
    dimethyl sulfate 163.42
    ethyl butyrate 100.45
    methyl lactate 143.27
    butyl lactate 125.3
    diethyl carbonate 60.1
    propanediol butyl ether 277.08
    triethyl orthoformate 67.65
    p-tert-butyltoluene 24.52
    methyl 4-tert-butylbenzoate 131.09
    morpholine 481.01
    tert-butylamine 163.1
    n-dodecanol 61.96
    dimethoxymethane 321.53
    ethylene carbonate 177.86
    cyrene 166.67
    2-ethoxyethyl acetate 202.46
    2-ethylhexyl acetate 100.04
    1,2,4-trichlorobenzene 92.98
    4-methylpyridine 130.12
    dibutyl ether 94.4
    2,6-dimethyl-4-heptanol 67.5
    DEF 220.94
    dimethyl isosorbide 296.1
    tetrachloroethylene 132.12
    eugenol 158.78
    triacetin 158.34
    span 80 206.29
    1,4-butanediol 182.12
    1,1-dichloroethane 86.59
    2-methyl-1-pentanol 183.66
    methyl formate 287.57
    2-methyl-1-butanol 175.04
    n-decane 9.5
    butyronitrile 126.78
    3,7-dimethyl-1-octanol 114.55
    1-chlorooctane 46.96
    1-chlorotetradecane 19.22
    n-nonane 8.74
    undecane 7.56
    tert-butylcyclohexane 9.96
    cyclooctane 3.66
    cyclopentanol 218.27
    tetrahydropyran 216.99
    tert-amyl methyl ether 102.67
    2,5,8-trioxanonane 368.4
    1-hexene 40.74
    2-isopropoxyethanol 242.62
    2,2,2-trifluoroethanol 191.59
    methyl butyrate 155.4

    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