Gunacin

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  • Identifiers

    CAS number
    73341-70-5

    Molecular formula
    C17H16O8

    SMILES
    CC1C(C(C2=C(O1)C(=O)C3=C(C2=O)C(=CC(=C3)OC)O)OC(=O)C)O

    Safety labels

  • Odor profile

    Fragrance
    Odorless 60.04%
    Sweet 33.31%
    Caramellic 32.73%
    Vanilla 28.86%
    Burnt 27.23%
    Milky 25.85%
    Creamy 24.47%
    Phenolic 20.85%
    Lactonic 18.14%
    Powdery 18.07%

     

    Flavor
    Bitter 85.13%
    Odorless 27.88%
    Bland 26.71%
    Very mild 22.05%
    Sweet-like 21.34%
    Parsley 20.06%
    Cedarleaf 19.7%
    Seedy 19.69%
    Cotton candy 19.57%
    Lovage 19.49%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    1.1

    pKa est.
    6.26 (neutral)

    Molecular weight
    348.3 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Boiling point est.
    544°C

    Flash point

    • 249.69 ˚C est.

  • Synonyms

    • Gunacin
    • 73341-70-5
    • 5QCC8657KT
    • 2H-Naphtho(2,3-b)pyran-5,10-dione, 4-(acetyloxy)-3,4-dihydro-3,6-dihydroxy-8-methoxy-2-methyl-
    • (3,6-dihydroxy-8-methoxy-2-methyl-5,10-dioxo-3,4-dihydro-2H-benzo[g]chromen-4-yl) acetate
    • (3,6-dihydroxy-8-methoxy-2-methyl-5,10-dioxo-3,4-dihydro-2H-benzo(g)chromen-4-yl) acetate
    • RefChem:144786
    • BRN 1332129
    • UNII-5QCC8657KT
    • 2H-Naphtho(2,3-b)pyran-5,10-dione, 3,4-dihydro-4-(acetyloxy)-3,6-dihydroxy-8-methoxy-2-methyl-
    • 5-18-05-00435 (Beilstein Handbook Reference)
    • orb3024325
    • DTXSID60994072
    • HY-N14714
    • Q27262743
    • 3,6-Dihydroxy-8-methoxy-2-methyl-5,10-dioxo-3,4,5,10-tetrahydro-2H-naphtho[2,3-b]pyran-4-yl acetate
    • 73341-70-5

  • Applications

    Gunacin (CAS 73341-70-5) is typically used in industry as a solvent and processing aid, serves as an intermediate in chemical syntheses, and can function as a stabilizer or chelating agent in formulations; in coatings and inks it acts as a solvent or carrier, in polymers/plastics processing it may be an intermediate or plasticizer, and in cosmetics/personal care and household cleaning products it may be employed as a solvent or fragrance-related component, with actual use governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 2.47
    methanol 4.39
    isopropanol 1.35
    water 0.18
    ethyl acetate 5.12
    n-propanol 1.75
    acetone 7.47
    n-butanol 1.16
    acetonitrile 8.02
    DMF 65.26
    toluene 0.4
    isobutanol 0.97
    1,4-dioxane 13.39
    methyl acetate 8.81
    THF 28.41
    2-butanone 5.71
    n-pentanol 1.22
    sec-butanol 0.94
    n-hexane 0.05
    ethylene glycol 6.4
    NMP 126.07
    cyclohexane 0.09
    DMSO 147.7
    n-butyl acetate 4.46
    n-octanol 1.05
    chloroform 4.29
    n-propyl acetate 6.34
    acetic acid 30.74
    dichloromethane 7.21
    cyclohexanone 14.61
    propylene glycol 3.04
    isopropyl acetate 2.58
    DMAc 114.17
    2-ethoxyethanol 18.46
    isopentanol 1.15
    n-heptane 0.05
    ethyl formate 7.06
    1,2-dichloroethane 5.69
    n-hexanol 0.76
    2-methoxyethanol 32.3
    isobutyl acetate 2.73
    tetrachloromethane 0.54
    n-pentyl acetate 2.33
    transcutol 23.11
    n-heptanol 1.04
    ethylbenzene 0.62
    MIBK 2.12
    2-propoxyethanol 19.05
    tert-butanol 1.59
    MTBE 0.58
    2-butoxyethanol 9.31
    propionic acid 7.98
    o-xylene 0.57
    formic acid 41.99
    diethyl ether 1.17
    m-xylene 0.4
    p-xylene 0.97
    chlorobenzene 1.01
    dimethyl carbonate 15.17
    n-octane 0.04
    formamide 65.93
    cyclopentanone 26.29
    2-pentanone 3.05
    anisole 3.21
    cyclopentyl methyl ether 4.17
    gamma-butyrolactone 54.27
    1-methoxy-2-propanol 15.94
    pyridine 10.05
    3-pentanone 3.33
    furfural 37.56
    n-dodecane 0.05
    diethylene glycol 29.87
    diisopropyl ether 0.28
    tert-amyl alcohol 1.22
    acetylacetone 10.78
    n-hexadecane 0.06
    acetophenone 7.5
    methyl propionate 9.26
    isopentyl acetate 3.96
    trichloroethylene 11.25
    n-nonanol 1.2
    cyclohexanol 1.66
    benzyl alcohol 4.92
    2-ethylhexanol 0.87
    isooctanol 0.97
    dipropyl ether 1.76
    1,2-dichlorobenzene 1.75
    ethyl lactate 8.82
    propylene carbonate 17.73
    n-methylformamide 30.15
    2-pentanol 0.52
    n-pentane 0.03
    1-propoxy-2-propanol 9.19
    1-methoxy-2-propyl acetate 10.08
    2-(2-methoxypropoxy) propanol 13.11
    mesitylene 0.32
    ε-caprolactone 18.62
    p-cymene 0.59
    epichlorohydrin 34.24
    1,1,1-trichloroethane 1.89
    2-aminoethanol 5.67
    morpholine-4-carbaldehyde 78.37
    sulfolane 94.13
    2,2,4-trimethylpentane 0.02
    2-methyltetrahydrofuran 6.95
    n-hexyl acetate 3.04
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 13.26
    sec-butyl acetate 2.72
    tert-butyl acetate 2.95
    decalin 0.1
    glycerin 17.03
    diglyme 28.26
    acrylic acid 13.97
    isopropyl myristate 1.52
    n-butyric acid 5.75
    acetyl acetate 6.25
    di(2-ethylhexyl) phthalate 3.47
    ethyl propionate 5.93
    nitromethane 78.37
    1,2-diethoxyethane 4.57
    benzonitrile 4.69
    trioctyl phosphate 2.31
    1-bromopropane 1.06
    gamma-valerolactone 54.93
    n-decanol 0.92
    triethyl phosphate 6.11
    4-methyl-2-pentanol 0.49
    propionitrile 4.46
    vinylene carbonate 18.96
    1,1,2-trichlorotrifluoroethane 40.28
    DMS 8.71
    cumene 0.53
    2-octanol 0.57
    2-hexanone 4.27
    octyl acetate 2.26
    limonene 0.66
    1,2-dimethoxyethane 32.07
    ethyl orthosilicate 4.38
    tributyl phosphate 3.15
    diacetone alcohol 8.6
    N,N-dimethylaniline 3.36
    acrylonitrile 10.46
    aniline 2.14
    1,3-propanediol 7.55
    bromobenzene 0.8
    dibromomethane 2.81
    1,1,2,2-tetrachloroethane 8.08
    2-methyl-cyclohexyl acetate 5.42
    tetrabutyl urea 5.86
    diisobutyl methanol 0.66
    2-phenylethanol 4.11
    styrene 0.7
    dioctyl adipate 4.4
    dimethyl sulfate 39.27
    ethyl butyrate 4.94
    methyl lactate 16.28
    butyl lactate 4.59
    diethyl carbonate 5.32
    propanediol butyl ether 6.61
    triethyl orthoformate 5.19
    p-tert-butyltoluene 0.47
    methyl 4-tert-butylbenzoate 7.66
    morpholine 19.84
    tert-butylamine 0.44
    n-dodecanol 0.69
    dimethoxymethane 24.48
    ethylene carbonate 14.9
    cyrene 25.96
    2-ethoxyethyl acetate 5.73
    2-ethylhexyl acetate 3.12
    1,2,4-trichlorobenzene 3.39
    4-methylpyridine 6.67
    dibutyl ether 1.25
    2,6-dimethyl-4-heptanol 0.66
    DEF 14.14
    dimethyl isosorbide 26.41
    tetrachloroethylene 5.35
    eugenol 9.78
    triacetin 9.07
    span 80 7.39
    1,4-butanediol 3.74
    1,1-dichloroethane 1.57
    2-methyl-1-pentanol 1.29
    methyl formate 26.4
    2-methyl-1-butanol 1.05
    n-decane 0.08
    butyronitrile 2.74
    3,7-dimethyl-1-octanol 0.96
    1-chlorooctane 0.38
    1-chlorotetradecane 0.21
    n-nonane 0.06
    undecane 0.06
    tert-butylcyclohexane 0.06
    cyclooctane 0.04
    cyclopentanol 3.35
    tetrahydropyran 4.0
    tert-amyl methyl ether 0.84
    2,5,8-trioxanonane 22.9
    1-hexene 0.27
    2-isopropoxyethanol 9.93
    2,2,2-trifluoroethanol 19.16
    methyl butyrate 8.8

    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