1-Methylcyclopentanol

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  • Identifiers

    CAS number
    1462-03-9

    Molecular formula
    C6H12O

    SMILES
    CC1(CCCC1)O

    Safety labels

    Flammable
    Flammable

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Camphoreous 58.66%
    Mint 53.11%
    Woody 43.3%
    Musty 42.59%
    Earthy 38.91%
    Solvent 37.17%
    Herbal 33.37%
    Pine 32.13%
    Fermented 29.87%
    Cooling 29.58%

     

    Flavor
    Camphor 33.26%
    Earthy 28.74%
    Minty 27.95%
    Sweet 27.86%
    Pungent 25.11%
    Musty 24.94%
    Woody 22.48%
    Terpenic 21.71%
    Soil 21.66%
    Beet 21.5%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    1.0

    pKa est.
    9.66 (weak base)

    Molecular weight
    100.16 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Very fast

    Boiling point est.
    134°C

    Flash point

    • 43.15 ˚C est.

  • Synonyms

    • 1-Methylcyclopentanol
    • 1462-03-9
    • 1-methylcyclopentan-1-ol
    • 1-methyl-cyclopentanol
    • Cyclopentanol, 1-methyl-
    • 1-Hydroxy-1-methylcyclopentane
    • 1-Methyl-1-cyclopentanol
    • 4SN9EJN64M
    • EINECS 215-963-4
    • NSC-23230
    • DTXSID50163295
    • Cyclopentanol, methyl-
    • NSC 23230
    • 1-Hydroxy-1-methylcyclopentane; 1-Methyl-1-cyclopentanol; 1-Methyl-1-hydroxycyclopentane; 1-Methylcyclopentan-1-ol; 1-Methylcyclopentyl Alcohol; NSC 23230
    • NSC23230
    • MFCD00001364
    • UNII-4SN9EJN64M
    • 1-methyl-cyclopentan-1-ol
    • ghl.PD_Mitscher_leg0.419
    • SCHEMBL304734
    • 1-Methylcyclopentanol, >=99%
    • DTXCID1085786
    • CHEBI:195647
    • BBL103058
    • LMFA05000538
    • STL556867
    • AKOS009157240
    • AC-8842
    • AS-33140
    • DB-050485
    • M0729
    • NS00024777
    • EN300-68930
    • Z449370856
    • 215-963-4

  • Applications

    1-Methylcyclopentanol (CAS 1462-03-9) is a tertiary alcohol on a cyclopentane ring and is primarily used as an organic synthesis intermediate to access cyclopentyl-containing compounds. It is commonly treated as a building block for the manufacture of pharmaceutical and agrochemical products, enabling transformations to esters, ethers, and other functional derivatives. In the fragrance and cosmetics sector, it can serve as an intermediate or fragrance precursor, contributing to scent formulations. It can also function as a chiral building block for asymmetric synthesis in research and development. Other applications, if any, would depend on local regulations and formulation constraints.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1308.15
    methanol 1482.08
    isopropanol 1181.9
    water 37.02
    ethyl acetate 554.68
    n-propanol 977.8
    acetone 582.23
    n-butanol 906.86
    acetonitrile 570.87
    DMF 581.84
    toluene 126.88
    isobutanol 662.21
    1,4-dioxane 700.39
    methyl acetate 526.81
    THF 878.91
    2-butanone 496.25
    n-pentanol 538.88
    sec-butanol 887.26
    n-hexane 133.65
    ethylene glycol 454.4
    NMP 416.46
    cyclohexane 94.84
    DMSO 402.65
    n-butyl acetate 324.69
    n-octanol 372.72
    chloroform 1042.58
    n-propyl acetate 252.02
    acetic acid 835.95
    dichloromethane 568.82
    cyclohexanone 408.46
    propylene glycol 792.18
    isopropyl acetate 355.25
    DMAc 524.52
    2-ethoxyethanol 659.41
    isopentanol 644.47
    n-heptane 123.17
    ethyl formate 306.48
    1,2-dichloroethane 270.05
    n-hexanol 692.53
    2-methoxyethanol 1090.22
    isobutyl acetate 176.06
    tetrachloromethane 248.93
    n-pentyl acetate 240.43
    transcutol 1407.49
    n-heptanol 375.33
    ethylbenzene 77.12
    MIBK 264.15
    2-propoxyethanol 909.53
    tert-butanol 1074.34
    MTBE 567.64
    2-butoxyethanol 590.09
    propionic acid 735.6
    o-xylene 101.73
    formic acid 420.01
    diethyl ether 544.08
    m-xylene 111.18
    p-xylene 107.28
    chlorobenzene 174.28
    dimethyl carbonate 159.18
    n-octane 48.47
    formamide 455.04
    cyclopentanone 513.75
    2-pentanone 408.3
    anisole 206.22
    cyclopentyl methyl ether 368.4
    gamma-butyrolactone 534.69
    1-methoxy-2-propanol 925.65
    pyridine 361.29
    3-pentanone 290.75
    furfural 426.15
    n-dodecane 37.46
    diethylene glycol 689.41
    diisopropyl ether 201.85
    tert-amyl alcohol 793.22
    acetylacetone 328.76
    n-hexadecane 38.19
    acetophenone 159.02
    methyl propionate 378.63
    isopentyl acetate 260.29
    trichloroethylene 517.36
    n-nonanol 311.49
    cyclohexanol 421.14
    benzyl alcohol 200.21
    2-ethylhexanol 323.93
    isooctanol 271.35
    dipropyl ether 330.35
    1,2-dichlorobenzene 151.41
    ethyl lactate 185.75
    propylene carbonate 341.16
    n-methylformamide 503.38
    2-pentanol 642.38
    n-pentane 142.69
    1-propoxy-2-propanol 661.7
    1-methoxy-2-propyl acetate 350.1
    2-(2-methoxypropoxy) propanol 394.47
    mesitylene 79.79
    ε-caprolactone 376.97
    p-cymene 82.63
    epichlorohydrin 478.34
    1,1,1-trichloroethane 426.59
    2-aminoethanol 899.25
    morpholine-4-carbaldehyde 534.33
    sulfolane 403.54
    2,2,4-trimethylpentane 70.74
    2-methyltetrahydrofuran 580.89
    n-hexyl acetate 351.66
    isooctane 60.85
    2-(2-butoxyethoxy)ethanol 591.51
    sec-butyl acetate 197.33
    tert-butyl acetate 328.04
    decalin 50.37
    glycerin 805.26
    diglyme 793.73
    acrylic acid 563.64
    isopropyl myristate 144.62
    n-butyric acid 848.59
    acetyl acetate 290.58
    di(2-ethylhexyl) phthalate 126.7
    ethyl propionate 247.08
    nitromethane 682.29
    1,2-diethoxyethane 411.85
    benzonitrile 203.4
    trioctyl phosphate 107.44
    1-bromopropane 275.93
    gamma-valerolactone 584.73
    n-decanol 229.19
    triethyl phosphate 105.37
    4-methyl-2-pentanol 368.6
    propionitrile 535.73
    vinylene carbonate 277.8
    1,1,2-trichlorotrifluoroethane 557.35
    DMS 188.22
    cumene 72.57
    2-octanol 243.17
    2-hexanone 263.73
    octyl acetate 188.64
    limonene 128.81
    1,2-dimethoxyethane 570.25
    ethyl orthosilicate 117.78
    tributyl phosphate 118.19
    diacetone alcohol 443.47
    N,N-dimethylaniline 142.05
    acrylonitrile 484.41
    aniline 269.74
    1,3-propanediol 883.36
    bromobenzene 147.36
    dibromomethane 410.33
    1,1,2,2-tetrachloroethane 485.9
    2-methyl-cyclohexyl acetate 167.81
    tetrabutyl urea 130.83
    diisobutyl methanol 182.04
    2-phenylethanol 227.1
    styrene 93.09
    dioctyl adipate 158.58
    dimethyl sulfate 173.57
    ethyl butyrate 239.78
    methyl lactate 311.89
    butyl lactate 237.62
    diethyl carbonate 147.98
    propanediol butyl ether 564.37
    triethyl orthoformate 188.78
    p-tert-butyltoluene 90.68
    methyl 4-tert-butylbenzoate 221.38
    morpholine 846.85
    tert-butylamine 769.15
    n-dodecanol 169.45
    dimethoxymethane 398.47
    ethylene carbonate 257.59
    cyrene 209.96
    2-ethoxyethyl acetate 294.5
    2-ethylhexyl acetate 194.85
    1,2,4-trichlorobenzene 178.71
    4-methylpyridine 305.94
    dibutyl ether 281.56
    2,6-dimethyl-4-heptanol 182.04
    DEF 373.04
    dimethyl isosorbide 380.84
    tetrachloroethylene 361.17
    eugenol 223.07
    triacetin 286.11
    span 80 408.72
    1,4-butanediol 368.52
    1,1-dichloroethane 452.42
    2-methyl-1-pentanol 386.25
    methyl formate 281.03
    2-methyl-1-butanol 575.23
    n-decane 65.84
    butyronitrile 525.75
    3,7-dimethyl-1-octanol 307.43
    1-chlorooctane 161.23
    1-chlorotetradecane 64.54
    n-nonane 65.84
    undecane 47.94
    tert-butylcyclohexane 62.37
    cyclooctane 41.03
    cyclopentanol 513.34
    tetrahydropyran 595.93
    tert-amyl methyl ether 373.46
    2,5,8-trioxanonane 499.42
    1-hexene 275.68
    2-isopropoxyethanol 454.21
    2,2,2-trifluoroethanol 361.76
    methyl butyrate 279.19

    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