Acridine

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  • Identifiers

    CAS number
    260-94-6

    Molecular formula
    C13H9N

    SMILES
    C1=CC=C2C(=C1)C=C3C=CC=CC3=N2

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 70.9%
    Animal 61.56%
    Pungent 40.68%
    Musty 39.17%
    Sweet 38.83%
    Orange 34.99%
    Earthy 33.21%
    Neroli 31.15%
    Geranium 30.59%
    Leathery 30.34%

     

    Flavor
    Bitter 46.73%
    Fecal 39.28%
    Animal 38.67%
    Mothball 28.78%
    Moth ball 28.42%
    Tobacco 28.33%
    Naphthelene 27.92%
    Civet 27.83%
    Very strong 27.04%
    Indole 26.97%

     

    Odor impact est.
    Low

  • Properties

    XLogP3-AA
    3.4

    pKa est.
    4.76 (weak acid)

    Molecular weight
    179.22 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 225 to 230 °F (NTP, 1992)
    • 111 °C; 106 °C (form a); 110 °C (form b)
    • 225-230 °F

    Boiling point

    • 655 °F at 760 mmHg (NTP, 1992)
    • 345.5 °C @ 760 mm Hg
    • 655 °F

    Flash point

    • 160.56 ˚C est.

    Solubility expt.

    • SLIGHTLY SOL IN HOT WATER; VERY SOL IN ALCOHOL, ETHER, BENZENE AND CARBON DISULFIDE
    • Freely sol in hydrocarbons; slightly soluble in boiling water, liquid ammonia, liguid sulfur dioxide; sparingly soluble in light petroleum
    • Very soluble in carbon disulfide; very soluble in ethanol, ether, benzene; slightly soluble in water
    • 1 gm soluble in <1 ml boiling benzene or alcohol; 5 ml benzene (20 °C); 6 ml alcohol (20 °C); 16 ml of ether (20 °C); 1.8 ml boiling cyclohexane.
    • In water= 38.4 mg/L at 24 °C.

  • Synonyms

    • ACRIDINE
    • 260-94-6
    • 9-Azaanthracene
    • 10-Azaanthracene
    • 2,3-Benzoquinoline
    • Acrydine
    • Akridin
    • Dibenzo[b,e]pyridine
    • Benzo(b)quinoline
    • Dibenzo(b,e)pyridine
    • 2,3,5,6-Dibenzopyridine
    • Benzo[b]quinoline
    • Akridin [Czech]
    • NSC 3408
    • NSC-3408
    • CCRIS 1636
    • HSDB 634
    • EINECS 205-971-6
    • UNII-42NI1P5Q1X
    • UN2713
    • BRN 0120200
    • 42NI1P5Q1X
    • CHEBI:36420
    • AI3-15279
    • ACRIDINE [MI]
    • 39327-16-7
    • DTXSID8059766
    • 5-20-08-00199 (Beilstein Handbook Reference)
    • UN 2713
    • DIBENZO (B,E) PYRIDINE
    • DIBENZO [B,E] PYRIDINE
    • Aceridine
    • 9Azaanthracene
    • 10Azaanthracene
    • 2,3Benzoquinoline
    • 9-ASAANTHRACENE
    • RefChem:109388
    • 2,3,5,6Dibenzopyridine
    • BENZO (B) QUINOLINE
    • DIBENZO(B,C)PYRIDINE
    • DTXCID6037433
    • 205-971-6
    • 9,9-dimethyl-2-nitro-9,10-dihydroacridine
    • Benzoquinoline
    • DZBUGLKDJFMEHC-UHFFFAOYSA-N
    • InChI=1/C13H9N/c1-3-7-12-10(5-1)9-11-6-2-4-8-13(11)14-12/h1-9
    • acridine acid
    • NSC3408
    • MFCD00005025
    • Acridines
    • ACRIDINE (1,2,3,4,5,6,7,8,9-D9)
    • Benzoquinolinylidene
    • Coal tar pitch volatiles: acridine
    • Acridine, 97%
    • UPCMLD-DP077
    • SCHEMBL8339
    • SCHEMBL23981
    • SCHEMBL24814
    • SCHEMBL25265
    • SCHEMBL26373
    • SCHEMBL27027
    • CHEMBL39677
    • SCHEMBL752521
    • WLN: T C666 BNJ
    • orb3029221
    • SCHEMBL1663602
    • SCHEMBL3922976
    • SCHEMBL4106752
    • SCHEMBL9322559
    • SCHEMBL29352289
    • UPCMLD-DP077:001
    • Acridine (purified by sublimation)
    • Acridine [UN2713] [Poison]
    • BDBM50551545
    • AKOS001568550
    • EBC-332170
    • FA17205
    • MSK001425-100T
    • Acridine Solution in Toluene, 100ug/mL
    • MSK001425-1000T
    • NCGC00161635-01
    • NCGC00161635-02
    • AS-42152
    • Acridine Solution in Toluene, 1000ug/mL
    • DB-046832
    • A0129
    • A0294
    • A3436
    • NS00009725
    • ST50330595
    • EN300-21156
    • C20141
    • A818165
    • AC-907/21098007
    • F332696
    • Q342713
    • J-200084
    • Acridine, BioReagent, suitable for fluorescence, >=97.0% (HPLC)
    • 260-94-6

  • Applications

    Acridine (CAS 260-94-6) is primarily used as an intermediate in the synthesis of acridine-based dyes and pigments for coatings, inks, and plastics. It also serves as a precursor for fluorescent dyes and staining reagents used in microscopy and analytical chemistry. The acridine framework is widely evaluated as a foundation for the synthesis of pharmaceutical and specialty compounds, so acridine can function as a building block for acridine-based derivatives used in drug development and related industries. In research and development settings, it is used as a laboratory reagent for organic synthesis and as a feedstock for specialty chemicals and materials, with potential applications in electronics and optoelectronics.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 15.64
    methanol 7.66
    isopropanol 10.26
    water 0.03
    ethyl acetate 88.53
    n-propanol 14.26
    acetone 68.67
    n-butanol 14.12
    acetonitrile 27.54
    DMF 96.25
    toluene 83.16
    isobutanol 11.17
    1,4-dioxane 119.77
    methyl acetate 75.7
    THF 199.1
    2-butanone 72.98
    n-pentanol 18.65
    sec-butanol 12.37
    n-hexane 16.61
    ethylene glycol 3.66
    NMP 92.72
    cyclohexane 15.85
    DMSO 75.76
    n-butyl acetate 112.71
    n-octanol 28.99
    chloroform 197.74
    n-propyl acetate 88.27
    acetic acid 33.53
    dichloromethane 296.95
    cyclohexanone 114.09
    propylene glycol 4.48
    isopropyl acetate 62.17
    DMAc 106.79
    2-ethoxyethanol 31.86
    isopentanol 17.93
    n-heptane 20.82
    ethyl formate 56.8
    1,2-dichloroethane 201.4
    n-hexanol 32.06
    2-methoxyethanol 34.01
    isobutyl acetate 78.87
    tetrachloromethane 27.25
    n-pentyl acetate 70.31
    transcutol 271.33
    n-heptanol 25.79
    ethylbenzene 76.84
    MIBK 55.9
    2-propoxyethanol 45.85
    tert-butanol 16.86
    MTBE 30.26
    2-butoxyethanol 39.59
    propionic acid 25.59
    o-xylene 53.62
    formic acid 4.94
    diethyl ether 59.33
    m-xylene 53.58
    p-xylene 83.23
    chlorobenzene 83.58
    dimethyl carbonate 53.29
    n-octane 13.04
    formamide 14.26
    cyclopentanone 143.8
    2-pentanone 66.57
    anisole 107.19
    cyclopentyl methyl ether 75.77
    gamma-butyrolactone 177.12
    1-methoxy-2-propanol 28.15
    pyridine 177.17
    3-pentanone 65.54
    furfural 156.08
    n-dodecane 9.72
    diethylene glycol 28.09
    diisopropyl ether 28.45
    tert-amyl alcohol 17.82
    acetylacetone 108.43
    n-hexadecane 10.91
    acetophenone 106.79
    methyl propionate 62.4
    isopentyl acetate 96.65
    trichloroethylene 345.91
    n-nonanol 30.4
    cyclohexanol 18.33
    benzyl alcohol 49.23
    2-ethylhexanol 37.4
    isooctanol 26.9
    dipropyl ether 76.42
    1,2-dichlorobenzene 93.16
    ethyl lactate 30.11
    propylene carbonate 117.51
    n-methylformamide 27.26
    2-pentanol 12.63
    n-pentane 8.13
    1-propoxy-2-propanol 41.37
    1-methoxy-2-propyl acetate 78.59
    2-(2-methoxypropoxy) propanol 65.57
    mesitylene 38.36
    ε-caprolactone 108.41
    p-cymene 48.03
    epichlorohydrin 207.29
    1,1,1-trichloroethane 108.05
    2-aminoethanol 7.47
    morpholine-4-carbaldehyde 106.18
    sulfolane 140.05
    2,2,4-trimethylpentane 6.46
    2-methyltetrahydrofuran 94.22
    n-hexyl acetate 93.49
    isooctane 5.63
    2-(2-butoxyethoxy)ethanol 82.8
    sec-butyl acetate 68.06
    tert-butyl acetate 64.25
    decalin 19.83
    glycerin 9.03
    diglyme 188.66
    acrylic acid 27.21
    isopropyl myristate 47.55
    n-butyric acid 42.12
    acetyl acetate 77.52
    di(2-ethylhexyl) phthalate 40.22
    ethyl propionate 83.53
    nitromethane 71.4
    1,2-diethoxyethane 138.97
    benzonitrile 78.39
    trioctyl phosphate 28.7
    1-bromopropane 83.82
    gamma-valerolactone 135.15
    n-decanol 25.4
    triethyl phosphate 47.74
    4-methyl-2-pentanol 15.45
    propionitrile 35.4
    vinylene carbonate 111.86
    1,1,2-trichlorotrifluoroethane 76.04
    DMS 92.48
    cumene 53.96
    2-octanol 22.14
    2-hexanone 82.45
    octyl acetate 54.13
    limonene 50.61
    1,2-dimethoxyethane 134.16
    ethyl orthosilicate 44.38
    tributyl phosphate 37.8
    diacetone alcohol 48.61
    N,N-dimethylaniline 79.3
    acrylonitrile 50.95
    aniline 48.3
    1,3-propanediol 11.86
    bromobenzene 108.38
    dibromomethane 178.33
    1,1,2,2-tetrachloroethane 201.56
    2-methyl-cyclohexyl acetate 75.09
    tetrabutyl urea 52.61
    diisobutyl methanol 31.79
    2-phenylethanol 60.45
    styrene 86.66
    dioctyl adipate 65.86
    dimethyl sulfate 67.04
    ethyl butyrate 100.8
    methyl lactate 23.25
    butyl lactate 40.2
    diethyl carbonate 74.27
    propanediol butyl ether 30.27
    triethyl orthoformate 63.26
    p-tert-butyltoluene 42.64
    methyl 4-tert-butylbenzoate 73.8
    morpholine 79.28
    tert-butylamine 14.47
    n-dodecanol 22.58
    dimethoxymethane 91.48
    ethylene carbonate 89.35
    cyrene 54.54
    2-ethoxyethyl acetate 95.98
    2-ethylhexyl acetate 85.86
    1,2,4-trichlorobenzene 102.42
    4-methylpyridine 125.6
    dibutyl ether 86.19
    2,6-dimethyl-4-heptanol 31.79
    DEF 78.99
    dimethyl isosorbide 126.87
    tetrachloroethylene 158.68
    eugenol 71.57
    triacetin 89.09
    span 80 49.34
    1,4-butanediol 7.02
    1,1-dichloroethane 92.63
    2-methyl-1-pentanol 26.18
    methyl formate 33.81
    2-methyl-1-butanol 15.62
    n-decane 14.6
    butyronitrile 36.31
    3,7-dimethyl-1-octanol 34.12
    1-chlorooctane 45.43
    1-chlorotetradecane 22.81
    n-nonane 14.09
    undecane 11.52
    tert-butylcyclohexane 16.47
    cyclooctane 10.44
    cyclopentanol 20.1
    tetrahydropyran 88.05
    tert-amyl methyl ether 32.8
    2,5,8-trioxanonane 120.29
    1-hexene 46.38
    2-isopropoxyethanol 31.23
    2,2,2-trifluoroethanol 13.97
    methyl butyrate 102.97

    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