Norbornene

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  • Identifiers

    CAS number
    498-66-8

    Molecular formula
    C7H10

    SMILES
    C1C[C@H]2C[C@@H]1C=C2

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Citrus 42.14%
    Sweet 36.63%
    Green 32.78%
    Fresh 28.7%
    Dry 27.41%
    Woody 25.89%
    Gassy 22.14%
    Spicy 21.93%
    Earthy 21.66%
    Fruity 21.45%

     

    Flavor
    Animal 29.35%
    Ammoniacal 21.85%
    Alkaline 21.28%
    Shrimp 21.11%
    Tar 18.43%
    Tarry 18.28%
    Terpentine 18.26%
    Sweet 18.05%
    Rotten 17.94%
    Cereal 17.78%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    9.2 (weak base)

    Molecular weight
    94.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Boiling point est.
    97°C

    Flash point

    • -13.42 ˚C est.

  • Synonyms

    • Norfenchene
    • 3,6-Endomethylenecyclohexene
    • Norcamphene
    • 2-Norbornylene
    • (1R,4S)-bicyclo[2.2.1]hept-2-ene
    • 8,9,10-Trinorborn-2-ene
    • 2Q51FLS550
    • Bicyclo(2.2.1)heptene
    • CHEBI:52286
    • NSC-22453
    • NSC-120425
    • (1R,4S)-bicyclo(2.2.1)hept-2-ene
    • b(2.2.1)heptene
    • RefChem:166552
    • 207-866-0
    • 498-66-8
    • Bicyclo(2.2.1)hept-2-ene
    • Norbornene
    • MFCD00082304
    • Norbornene, 99%
    • cis-norbornene
    • 2-norbornen
    • NSC 120425
    • SCHEMBL81839
    • bicyclo[2.2.1]hept-5-ene
    • UNII-2Q51FLS550
    • EINECS 207-866-0
    • AKOS005259230
    • Bicyclo[2.2.1]hept-2-ene, 99%
    • (1S,4R)-bicyclo[2.2.1]hept-2-ene
    • Norbornene 100 microg/mL in Acetonitrile
    • EC 207-866-0
    • 498-66-8

  • Applications

    Norbornene (CAS 498-66-8) is widely used as a monomer in ROMP to prepare polynorbornene and copolymers for high-performance coatings, adhesives, and elastomeric materials; norbornene derivatives are employed as reactive monomers in UV-curable coatings and resins and in photoresists for electronics; polynorbornene-based polymers find applications in optical films and other electronic materials; and the rigid bicyclic structure provides a versatile building block for introducing functional groups and crosslinkable moieties into polymers and related materials.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 283.88
    methanol 212.32
    isopropanol 233.39
    water 0.89
    ethyl acetate 563.51
    n-propanol 293.64
    acetone 311.1
    n-butanol 289.92
    acetonitrile 333.54
    DMF 217.08
    toluene 308.09
    isobutanol 197.14
    1,4-dioxane 672.81
    methyl acetate 393.29
    THF 683.2
    2-butanone 369.67
    n-pentanol 206.45
    sec-butanol 257.81
    n-hexane 150.61
    ethylene glycol 89.17
    NMP 205.51
    cyclohexane 154.83
    DMSO 237.65
    n-butyl acetate 407.9
    n-octanol 163.94
    chloroform 1074.82
    n-propyl acetate 243.41
    acetic acid 224.25
    dichloromethane 726.43
    cyclohexanone 317.27
    propylene glycol 164.22
    isopropyl acetate 351.45
    DMAc 269.34
    2-ethoxyethanol 297.9
    isopentanol 237.75
    n-heptane 168.88
    ethyl formate 179.64
    1,2-dichloroethane 410.9
    n-hexanol 336.93
    2-methoxyethanol 392.19
    isobutyl acetate 170.45
    tetrachloromethane 236.83
    n-pentyl acetate 178.38
    transcutol 1178.23
    n-heptanol 161.7
    ethylbenzene 148.86
    MIBK 237.92
    2-propoxyethanol 548.8
    tert-butanol 266.97
    MTBE 379.53
    2-butoxyethanol 267.1
    propionic acid 265.08
    o-xylene 179.24
    formic acid 67.21
    diethyl ether 529.58
    m-xylene 218.01
    p-xylene 157.79
    chlorobenzene 277.52
    dimethyl carbonate 157.41
    n-octane 55.6
    formamide 98.5
    cyclopentanone 371.61
    2-pentanone 350.3
    anisole 286.28
    cyclopentyl methyl ether 382.83
    gamma-butyrolactone 367.18
    1-methoxy-2-propanol 387.79
    pyridine 492.91
    3-pentanone 314.89
    furfural 326.16
    n-dodecane 40.58
    diethylene glycol 373.55
    diisopropyl ether 233.5
    tert-amyl alcohol 244.07
    acetylacetone 355.39
    n-hexadecane 43.82
    acetophenone 208.05
    methyl propionate 358.95
    isopentyl acetate 311.09
    trichloroethylene 726.92
    n-nonanol 155.28
    cyclohexanol 214.03
    benzyl alcohol 183.13
    2-ethylhexanol 238.77
    isooctanol 130.09
    dipropyl ether 445.65
    1,2-dichlorobenzene 242.18
    ethyl lactate 131.08
    propylene carbonate 269.43
    n-methylformamide 147.83
    2-pentanol 237.26
    n-pentane 140.91
    1-propoxy-2-propanol 485.2
    1-methoxy-2-propyl acetate 441.4
    2-(2-methoxypropoxy) propanol 279.07
    mesitylene 138.94
    ε-caprolactone 328.71
    p-cymene 134.41
    epichlorohydrin 471.18
    1,1,1-trichloroethane 518.74
    2-aminoethanol 180.99
    morpholine-4-carbaldehyde 355.55
    sulfolane 283.7
    2,2,4-trimethylpentane 71.89
    2-methyltetrahydrofuran 481.3
    n-hexyl acetate 247.13
    isooctane 68.36
    2-(2-butoxyethoxy)ethanol 394.41
    sec-butyl acetate 209.86
    tert-butyl acetate 325.96
    decalin 83.13
    glycerin 189.2
    diglyme 642.16
    acrylic acid 210.77
    isopropyl myristate 126.7
    n-butyric acid 345.89
    acetyl acetate 360.02
    di(2-ethylhexyl) phthalate 104.58
    ethyl propionate 268.26
    nitromethane 302.69
    1,2-diethoxyethane 520.51
    benzonitrile 210.88
    trioctyl phosphate 72.38
    1-bromopropane 410.16
    gamma-valerolactone 412.77
    n-decanol 121.07
    triethyl phosphate 129.21
    4-methyl-2-pentanol 170.9
    propionitrile 317.29
    vinylene carbonate 241.15
    1,1,2-trichlorotrifluoroethane 369.26
    DMS 217.59
    cumene 112.19
    2-octanol 105.52
    2-hexanone 234.22
    octyl acetate 152.12
    limonene 190.71
    1,2-dimethoxyethane 382.03
    ethyl orthosilicate 139.08
    tributyl phosphate 92.51
    diacetone alcohol 289.91
    N,N-dimethylaniline 175.01
    acrylonitrile 316.86
    aniline 303.0
    1,3-propanediol 220.42
    bromobenzene 326.22
    dibromomethane 580.23
    1,1,2,2-tetrachloroethane 607.47
    2-methyl-cyclohexyl acetate 197.89
    tetrabutyl urea 103.15
    diisobutyl methanol 163.11
    2-phenylethanol 230.35
    styrene 189.86
    dioctyl adipate 157.78
    dimethyl sulfate 152.22
    ethyl butyrate 317.8
    methyl lactate 180.11
    butyl lactate 139.52
    diethyl carbonate 206.04
    propanediol butyl ether 222.99
    triethyl orthoformate 235.83
    p-tert-butyltoluene 134.98
    methyl 4-tert-butylbenzoate 194.95
    morpholine 622.89
    tert-butylamine 225.37
    n-dodecanol 101.23
    dimethoxymethane 324.6
    ethylene carbonate 216.74
    cyrene 164.8
    2-ethoxyethyl acetate 306.06
    2-ethylhexyl acetate 266.84
    1,2,4-trichlorobenzene 289.48
    4-methylpyridine 351.85
    dibutyl ether 272.94
    2,6-dimethyl-4-heptanol 163.11
    DEF 296.81
    dimethyl isosorbide 353.02
    tetrachloroethylene 422.77
    eugenol 176.4
    triacetin 266.24
    span 80 243.94
    1,4-butanediol 100.49
    1,1-dichloroethane 490.11
    2-methyl-1-pentanol 182.28
    methyl formate 105.48
    2-methyl-1-butanol 229.81
    n-decane 62.41
    butyronitrile 299.85
    3,7-dimethyl-1-octanol 180.43
    1-chlorooctane 137.68
    1-chlorotetradecane 74.15
    n-nonane 65.77
    undecane 48.19
    tert-butylcyclohexane 76.76
    cyclooctane 92.54
    cyclopentanol 201.95
    tetrahydropyran 551.75
    tert-amyl methyl ether 291.72
    2,5,8-trioxanonane 422.48
    1-hexene 263.3
    2-isopropoxyethanol 251.73
    2,2,2-trifluoroethanol 106.26
    methyl butyrate 238.29

    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