Bicyclo[2.2.1]heptane

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  • Identifiers

    CAS number
    279-23-2

    Molecular formula
    C7H12

    SMILES
    C1CC2CCC1C2

  • Odor profile

    Fragrance
    Sweet 35.7%
    Dry 34.94%
    Woody 32.0%
    Musk 28.29%
    Amber 27.56%
    Waxy 27.16%
    Citrus 26.88%
    Green 26.79%
    Animal 26.58%
    Fresh 24.2%

     

    Flavor
    Animal 27.35%
    Alkaline 21.35%
    Shrimp 20.09%
    Sweet 19.0%
    Ammoniacal 18.91%
    Beet 18.24%
    Rotten 18.08%
    Soil 18.06%
    Cereal 17.99%
    Old paper 17.9%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    3.0

    pKa est.
    9.98 (weak base)

    Molecular weight
    96.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    106°C

    Flash point

    • -9.25 ˚C est.

  • Synonyms

    • NORBORNANE
    • Bicyclo[2.2.1]heptane
    • 279-23-2
    • Norbornylane
    • Norcamphane
    • Norfenchane
    • Norsantane
    • 1,4-Endomethylenecyclohexane
    • Bicyclo(2.2.1)heptane
    • Cyclohexane, 1,4-endo-methylene-
    • (1s,4s)-bicyclo[2.2.1]heptane
    • EINECS 205-996-2
    • PAF9G8MY72
    • NSC 91457
    • 1,4-endo-methylenecyclohexane
    • BRN 1900379
    • AI3-51350
    • MFCD00074822
    • NSC-91457
    • DTXSID4075376
    • CHEBI:71546
    • 4-05-00-00258 (Beilstein Handbook Reference)
    • (1s,4s)-bicyclo(2.2.1)heptane
    • Bicyclo(2.2.1)heptane (9CI)
    • Norbornane, 98%
    • Bicyclo2.2.1heptane
    • UNII-PAF9G8MY72
    • 1,4Endomethylenecyclohexane
    • Cyclohexane, 1,4endomethylene
    • Cyclohexane,4-endo-methylene-
    • bicyclo[2.2.1]heptan-2-yl
    • DTXCID9037745
    • DTXSID40953102
    • NSC91457
    • AKOS015915787
    • AKOS016845937
    • AS-57526
    • SY052468
    • N0517
    • NS00028387
    • D91724
    • Q418111
    • 205-996-2
    • I9A

  • Applications

    Bicyclo[2.2.1]heptane, CAS 279-23-2, is primarily used as a nonpolar solvent and a chemical intermediate in organic synthesis; it is commonly employed in the preparation of bicyclic compounds and as a building block for monomers or derivatives used in polymer-related workflows. It may also serve as a solvent and reaction medium in industrial chemical manufacturing and in coatings/inks formulations. The rigid bicyclic framework can act as a scaffold in specialty chemicals and may be a precursor for compounds used in research and development. Its applications are subject to local regulations and formulation limits, and use should be in accordance with safety and quality requirements.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 283.76
    methanol 205.06
    isopropanol 261.54
    water 0.68
    ethyl acetate 713.01
    n-propanol 317.72
    acetone 427.76
    n-butanol 329.83
    acetonitrile 369.53
    DMF 277.36
    toluene 435.2
    isobutanol 229.67
    1,4-dioxane 819.52
    methyl acetate 487.39
    THF 1065.35
    2-butanone 481.31
    n-pentanol 203.29
    sec-butanol 284.35
    n-hexane 234.52
    ethylene glycol 83.11
    NMP 328.73
    cyclohexane 313.5
    DMSO 270.47
    n-butyl acetate 606.05
    n-octanol 202.17
    chloroform 1654.52
    n-propyl acetate 340.55
    acetic acid 305.86
    dichloromethane 1124.09
    cyclohexanone 539.77
    propylene glycol 150.62
    isopropyl acetate 488.38
    DMAc 323.84
    2-ethoxyethanol 269.4
    isopentanol 271.11
    n-heptane 324.27
    ethyl formate 256.87
    1,2-dichloroethane 619.87
    n-hexanol 408.05
    2-methoxyethanol 387.17
    isobutyl acetate 248.26
    tetrachloromethane 408.13
    n-pentyl acetate 269.43
    transcutol 1140.2
    n-heptanol 206.37
    ethylbenzene 210.32
    MIBK 301.94
    2-propoxyethanol 580.07
    tert-butanol 328.7
    MTBE 450.89
    2-butoxyethanol 319.45
    propionic acid 326.79
    o-xylene 253.8
    formic acid 70.16
    diethyl ether 646.01
    m-xylene 292.06
    p-xylene 231.08
    chlorobenzene 451.16
    dimethyl carbonate 201.79
    n-octane 98.53
    formamide 108.41
    cyclopentanone 644.08
    2-pentanone 443.33
    anisole 357.85
    cyclopentyl methyl ether 558.35
    gamma-butyrolactone 643.87
    1-methoxy-2-propanol 383.45
    pyridine 678.99
    3-pentanone 434.01
    furfural 527.1
    n-dodecane 66.36
    diethylene glycol 351.68
    diisopropyl ether 321.97
    tert-amyl alcohol 289.23
    acetylacetone 516.75
    n-hexadecane 73.95
    acetophenone 264.28
    methyl propionate 453.9
    isopentyl acetate 482.0
    trichloroethylene 1100.64
    n-nonanol 200.31
    cyclohexanol 305.9
    benzyl alcohol 211.02
    2-ethylhexanol 329.33
    isooctanol 171.41
    dipropyl ether 683.82
    1,2-dichlorobenzene 393.78
    ethyl lactate 171.89
    propylene carbonate 468.95
    n-methylformamide 171.93
    2-pentanol 278.38
    n-pentane 214.21
    1-propoxy-2-propanol 590.77
    1-methoxy-2-propyl acetate 588.0
    2-(2-methoxypropoxy) propanol 327.25
    mesitylene 194.1
    ε-caprolactone 521.48
    p-cymene 206.65
    epichlorohydrin 693.34
    1,1,1-trichloroethane 890.41
    2-aminoethanol 167.87
    morpholine-4-carbaldehyde 449.51
    sulfolane 505.27
    2,2,4-trimethylpentane 100.5
    2-methyltetrahydrofuran 726.56
    n-hexyl acetate 360.25
    isooctane 92.42
    2-(2-butoxyethoxy)ethanol 451.27
    sec-butyl acetate 295.74
    tert-butyl acetate 482.81
    decalin 133.94
    glycerin 191.04
    diglyme 774.1
    acrylic acid 270.59
    isopropyl myristate 198.58
    n-butyric acid 473.42
    acetyl acetate 557.71
    di(2-ethylhexyl) phthalate 137.38
    ethyl propionate 371.75
    nitromethane 400.37
    1,2-diethoxyethane 624.74
    benzonitrile 302.49
    trioctyl phosphate 107.35
    1-bromopropane 592.39
    gamma-valerolactone 630.03
    n-decanol 158.33
    triethyl phosphate 207.4
    4-methyl-2-pentanol 192.29
    propionitrile 415.97
    vinylene carbonate 385.25
    1,1,2-trichlorotrifluoroethane 534.61
    DMS 290.84
    cumene 149.7
    2-octanol 136.87
    2-hexanone 313.1
    octyl acetate 226.47
    limonene 321.47
    1,2-dimethoxyethane 444.19
    ethyl orthosilicate 218.7
    tributyl phosphate 140.56
    diacetone alcohol 366.85
    N,N-dimethylaniline 214.02
    acrylonitrile 401.09
    aniline 391.38
    1,3-propanediol 221.92
    bromobenzene 530.73
    dibromomethane 886.4
    1,1,2,2-tetrachloroethane 963.61
    2-methyl-cyclohexyl acetate 304.72
    tetrabutyl urea 151.45
    diisobutyl methanol 229.92
    2-phenylethanol 279.5
    styrene 261.33
    dioctyl adipate 233.91
    dimethyl sulfate 202.56
    ethyl butyrate 518.47
    methyl lactate 222.31
    butyl lactate 209.64
    diethyl carbonate 339.55
    propanediol butyl ether 236.74
    triethyl orthoformate 379.1
    p-tert-butyltoluene 208.69
    methyl 4-tert-butylbenzoate 281.11
    morpholine 736.0
    tert-butylamine 287.34
    n-dodecanol 133.4
    dimethoxymethane 361.39
    ethylene carbonate 351.3
    cyrene 200.72
    2-ethoxyethyl acetate 368.65
    2-ethylhexyl acetate 410.57
    1,2,4-trichlorobenzene 457.17
    4-methylpyridine 496.67
    dibutyl ether 437.53
    2,6-dimethyl-4-heptanol 229.92
    DEF 398.27
    dimethyl isosorbide 476.03
    tetrachloroethylene 667.32
    eugenol 228.97
    triacetin 367.43
    span 80 328.45
    1,4-butanediol 93.52
    1,1-dichloroethane 757.79
    2-methyl-1-pentanol 184.04
    methyl formate 140.92
    2-methyl-1-butanol 251.61
    n-decane 107.68
    butyronitrile 405.93
    3,7-dimethyl-1-octanol 231.32
    1-chlorooctane 219.86
    1-chlorotetradecane 113.69
    n-nonane 116.1
    undecane 80.66
    tert-butylcyclohexane 115.94
    cyclooctane 168.93
    cyclopentanol 312.51
    tetrahydropyran 820.29
    tert-amyl methyl ether 359.38
    2,5,8-trioxanonane 510.5
    1-hexene 369.43
    2-isopropoxyethanol 237.44
    2,2,2-trifluoroethanol 142.3
    methyl butyrate 363.8

    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