Fast Orange

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  • Identifiers

    CAS number
    3468-63-1

    Molecular formula
    C16H10N4O5

    SMILES
    C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C=C3)[N+](=O)[O-])[N+](=O)[O-])O

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 48.85%
    Sweet 35.49%
    Grape 27.65%
    Powdery 27.64%
    Bitter 26.6%
    Floral 26.02%
    Fatty 25.97%
    Neroli 25.1%
    Vanilla 24.27%
    Balsamic 23.35%

     

    Flavor
    Bitter 87.35%
    Odorless 44.09%
    Bland 21.61%
    Mild 21.0%
    Nitrile 20.63%
    Sweet-like 19.41%
    Very strong 19.18%
    Indole 18.81%
    Bread crust 18.72%
    Orange flower 18.14%

     

    Odor impact est.
    Odorless

  • Properties

    XLogP3-AA
    4.3

    pKa est.
    7.28 (neutral)

    Molecular weight
    338.27 g/mol

    Melting point expt.

    • 302 °C

    Flash point

    • 268.98 ˚C est.

  • Synonyms

    • 3468-63-1
    • Permatone Orange
    • Hansa Orange RN
    • Light Orange R
    • Silopol Orange R
    • Carnelio Red 2G
    • Chromatex Orange R
    • Graphtol Red 2GL
    • Versal Orange RNL
    • Lake Red 2GL
    • Isol Fast Red 2G
    • Calcotone Orange 2R
    • Syton Fast Red 2G
    • Helio Fast Orange RN
    • Lutetia Fast Orange R
    • Brilliant tangerine 13030
    • Irgalite Fast Red 2GL
    • Nippon Orange X-881
    • Segnale Light Orange RNG
    • Dainichi Permanent Red GG
    • Signal Orange Orange Y-17
    • Dinitroaniline Orange ND-204
    • D&C Orange No. 17
    • DTXSID6029258
    • RefChem:1085302
    • DTXCID10809869
    • Fast Orange
    • Permanent Orange
    • Dinitroaniline Orange
    • Dinitroaniline Red
    • Permansa Orange
    • Orange No. 203
    • Irgalite Red 2G
    • Permanent Red GG
    • Fastona Red 2G
    • Oralith Red 2GL
    • Siegle Orange 2S
    • Silosol Orange RN
    • Siloton Orange RL
    • Irgalite Red 2GW
    • Irgalite Red PV8
    • Dinitraniline Orange
    • Permanent Orange GG
    • Permanent Orange HD
    • D and C Orange No. 17
    • Helio Fast Orange RT
    • Signal Orange Y-17
    • D&C Orange 17
    • Monolite Fast Red 2G
    • Helio Fast Orange 3RN
    • Helio Fast Orange 3RT
    • 11048 Orange
    • Segnale Light Orange RN
    • Monolite Fast Orange 2R
    • Permanent Orange DN Toner
    • 1-[(2,4-Dinitrophenyl)azo]-2-naphthol
    • Monolite Fast Paper Orange 2R
    • Permaton Orange XL 45-3015
    • 1-[(2,4-dinitrophenyl)diazenyl]naphthalen-2-ol
    • Permanent Orange Toner RA-5650
    • C.I. 12075
    • Permanent red 2G
    • 1-((2,4-Dinitrophenyl)azo)-2-naphthol
    • MFCD00059524
    • 1-(2,4-Dinitrophenylazo)-2-naphthol
    • CI 12075
    • 1-((2,4-Dinitrophenyl)azo)-2-naphthalenol
    • 2-Naphthalenol, 1-((2,4-dinitrophenyl)azo)-
    • C16H10N4O5
    • E27LT0986O
    • Permanent orange 5
    • NSC-15975
    • Permanent Orange (>90%)
    • 1-((2,4-Dinitrophenyl)diazenyl)naphthalen-2-ol
    • 1-[(2,4-DINITROPHENYL)AZO]-2-NAPHTHALENOL
    • D & C Orange No. 17
    • CCRIS 4902
    • EINECS 222-429-4
    • NSC 15975
    • BRN 0964718
    • Permanentorange
    • UNII-E27LT0986O
    • AI3-30759
    • HSDB 7721
    • 2-NAPHTHOL, 1-((2,4-DINITROPHENYL)AZO)-
    • DNA ORANGE
    • D+C Orange No. 17
    • DAIDAI203
    • EC 222-429-4
    • SCHEMBL305524
    • SCHEMBL305525
    • SCHEMBL375610
    • CHEMBL1982121
    • SCHEMBL13474931
    • SCHEMBL29355385
    • MSK5863
    • HBHZKFOUIUMKHV-UHFFFAOYSA-N
    • 2-Naphthol,4-dinitrophenyl)azo]-
    • Permanent Orange (Technical Grade)
    • HY-D0352
    • NSC15975
    • 2-Naphthalenol,4-dinitrophenyl)azo]-
    • D&C ORANGE NO. 17 (DELISTED)
    • 1-(2,4-dinitrophenyl)azonaphthalen-2-ol
    • NCI60_001177
    • SY056212
    • CS-0010357
    • NS00048855
    • P0587
    • P2886
    • D91975
    • 1-[(2,4-dinitrophenyl)hydrazono]naphthalen-2-one
    • 468P631
    • F099175
    • 2-Naphthalenol, 1-(2-(2,4-dinitrophenyl)diazenyl)-
    • Q27276766
    • (1Z)-1-[(2,4-dinitrophenyl)hydrazono]naphthalen-2-one
    • 3468-63-1

  • Applications

    Fast Orange (CAS 3468-63-1) is commonly used as an odorant and fragrance component in perfumery and cosmetics, contributing citrus-like notes in products such as fragrances and personal care items. It may be used in household and cleaning formulations as a scent ingredient to impart a fresh orange aroma, and can serve as an intermediate or processing aid in fragrance-related industrial manufacturing. In coatings or inks, it is sometimes employed as a fragrance additive to provide aroma in decorative or packaging applications. Usage is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.18
    methanol 0.19
    isopropanol 0.16
    water 0.0
    ethyl acetate 1.66
    n-propanol 0.25
    acetone 2.48
    n-butanol 0.18
    acetonitrile 0.86
    DMF 7.62
    toluene 1.0
    isobutanol 0.16
    1,4-dioxane 8.13
    methyl acetate 4.23
    THF 16.6
    2-butanone 5.1
    n-pentanol 0.38
    sec-butanol 0.33
    n-hexane 0.01
    ethylene glycol 0.18
    NMP 7.24
    cyclohexane 0.01
    DMSO 5.78
    n-butyl acetate 2.75
    n-octanol 0.34
    chloroform 0.75
    n-propyl acetate 2.7
    acetic acid 1.8
    dichloromethane 1.17
    cyclohexanone 4.63
    propylene glycol 0.3
    isopropyl acetate 1.58
    DMAc 20.97
    2-ethoxyethanol 3.71
    isopentanol 0.24
    n-heptane 0.02
    ethyl formate 0.87
    1,2-dichloroethane 1.09
    n-hexanol 0.33
    2-methoxyethanol 3.68
    isobutyl acetate 1.55
    tetrachloromethane 0.04
    n-pentyl acetate 2.11
    transcutol 33.0
    n-heptanol 0.39
    ethylbenzene 0.6
    MIBK 1.37
    2-propoxyethanol 5.35
    tert-butanol 0.36
    MTBE 1.07
    2-butoxyethanol 3.21
    propionic acid 1.23
    o-xylene 0.65
    formic acid 0.7
    diethyl ether 0.64
    m-xylene 0.5
    p-xylene 0.87
    chlorobenzene 0.62
    dimethyl carbonate 2.59
    n-octane 0.02
    formamide 2.08
    cyclopentanone 8.36
    2-pentanone 1.75
    anisole 3.33
    cyclopentyl methyl ether 1.7
    gamma-butyrolactone 10.39
    1-methoxy-2-propanol 2.98
    pyridine 6.43
    3-pentanone 1.94
    furfural 9.63
    n-dodecane 0.03
    diethylene glycol 3.94
    diisopropyl ether 0.27
    tert-amyl alcohol 0.58
    acetylacetone 7.1
    n-hexadecane 0.04
    acetophenone 4.33
    methyl propionate 2.4
    isopentyl acetate 2.94
    trichloroethylene 4.72
    n-nonanol 0.51
    cyclohexanol 0.32
    benzyl alcohol 1.82
    2-ethylhexanol 0.45
    isooctanol 0.43
    dipropyl ether 1.36
    1,2-dichlorobenzene 0.76
    ethyl lactate 2.32
    propylene carbonate 2.83
    n-methylformamide 1.97
    2-pentanol 0.19
    n-pentane 0.01
    1-propoxy-2-propanol 4.3
    1-methoxy-2-propyl acetate 7.86
    2-(2-methoxypropoxy) propanol 9.67
    mesitylene 0.28
    ε-caprolactone 5.12
    p-cymene 0.57
    epichlorohydrin 13.04
    1,1,1-trichloroethane 0.59
    2-aminoethanol 0.33
    morpholine-4-carbaldehyde 17.47
    sulfolane 13.98
    2,2,4-trimethylpentane 0.02
    2-methyltetrahydrofuran 3.29
    n-hexyl acetate 2.2
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 9.57
    sec-butyl acetate 2.06
    tert-butyl acetate 3.13
    decalin 0.03
    glycerin 1.17
    diglyme 22.58
    acrylic acid 2.0
    isopropyl myristate 1.64
    n-butyric acid 0.87
    acetyl acetate 2.06
    di(2-ethylhexyl) phthalate 1.9
    ethyl propionate 2.27
    nitromethane 10.33
    1,2-diethoxyethane 8.73
    benzonitrile 2.0
    trioctyl phosphate 0.97
    1-bromopropane 0.32
    gamma-valerolactone 20.25
    n-decanol 0.43
    triethyl phosphate 2.34
    4-methyl-2-pentanol 0.22
    propionitrile 0.83
    vinylene carbonate 3.0
    1,1,2-trichlorotrifluoroethane 8.56
    DMS 5.77
    cumene 0.39
    2-octanol 0.32
    2-hexanone 3.51
    octyl acetate 1.76
    limonene 0.64
    1,2-dimethoxyethane 11.17
    ethyl orthosilicate 2.09
    tributyl phosphate 1.47
    diacetone alcohol 4.19
    N,N-dimethylaniline 2.12
    acrylonitrile 2.14
    aniline 1.03
    1,3-propanediol 0.55
    bromobenzene 0.62
    dibromomethane 0.4
    1,1,2,2-tetrachloroethane 2.8
    2-methyl-cyclohexyl acetate 3.09
    tetrabutyl urea 2.87
    diisobutyl methanol 0.55
    2-phenylethanol 2.27
    styrene 0.71
    dioctyl adipate 3.88
    dimethyl sulfate 5.91
    ethyl butyrate 2.76
    methyl lactate 2.73
    butyl lactate 2.58
    diethyl carbonate 2.1
    propanediol butyl ether 2.77
    triethyl orthoformate 3.28
    p-tert-butyltoluene 0.6
    methyl 4-tert-butylbenzoate 5.34
    morpholine 6.69
    tert-butylamine 0.15
    n-dodecanol 0.37
    dimethoxymethane 4.99
    ethylene carbonate 1.86
    cyrene 7.83
    2-ethoxyethyl acetate 7.44
    2-ethylhexyl acetate 2.37
    1,2,4-trichlorobenzene 1.6
    4-methylpyridine 3.53
    dibutyl ether 1.48
    2,6-dimethyl-4-heptanol 0.55
    DEF 3.2
    dimethyl isosorbide 19.29
    tetrachloroethylene 1.16
    eugenol 6.14
    triacetin 7.6
    span 80 4.96
    1,4-butanediol 0.31
    1,1-dichloroethane 0.5
    2-methyl-1-pentanol 0.54
    methyl formate 2.23
    2-methyl-1-butanol 0.26
    n-decane 0.04
    butyronitrile 0.47
    3,7-dimethyl-1-octanol 0.58
    1-chlorooctane 0.24
    1-chlorotetradecane 0.17
    n-nonane 0.03
    undecane 0.04
    tert-butylcyclohexane 0.04
    cyclooctane 0.01
    cyclopentanol 0.45
    tetrahydropyran 2.07
    tert-amyl methyl ether 1.35
    2,5,8-trioxanonane 19.46
    1-hexene 0.12
    2-isopropoxyethanol 2.79
    2,2,2-trifluoroethanol 0.74
    methyl butyrate 2.8

    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