C.I. Acid Green 1

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  • Identifiers

    CAS number
    19381-50-1

    Molecular formula
    C30H15FeN3Na3O15S3

    SMILES
    C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].C1=CC2=C(C=CC(=C2N=O)[O-])C=C1S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Fe+3]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 83.47%
    Bitter 22.16%
    Cooked 20.12%
    Burnt 18.72%
    Savory 18.1%
    Roasted 14.56%
    Clean 13.49%
    Milky 13.32%
    Pungent 12.91%
    Grape 12.76%

     

    Flavor
    Bitter 86.78%
    Odorless 35.97%
    Nitrile 21.03%
    Bland 19.95%
    Very strong 18.94%
    Bread crust 18.89%
    Indole 18.69%
    Taco 18.68%
    Roasted peanuts 18.32%
    Urine 18.12%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    4.25 (weak acid)

    Molecular weight
    878.5 g/mol

    Flash point

    • 190.08 ˚C est.

  • Synonyms

    • Acid green 1
    • C.I. Acid Green 1
    • Ext D&C Green 1
    • C.I. Acid Green 1 (VAN)
    • EINECS 243-010-2
    • GREEN NO. 401
    • DTXSID4044406
    • VERT B W 7002
    • NSC-9830
    • Iron, tris(5,6-dihydro-5,6-dioxo-2-naphthalenesulfonic acid-5-oximato)-, trisodium salt
    • Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N(sup 5), O(sup 6))-, trisodium
    • Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6)-, trisodium
    • FERRATE(3-), TRIS(5,6-DIHYDRO-5-(HYDROXYIMINO-.KAPPA.N)-6-(OXO-.KAPPA.O)-2-NAPHTHALENESULFONATO(2-))-, SODIUM (1:3)
    • Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino-kappaN)-6-(oxo-kappaO)-2-naphthalenesulfonato(2-))-, sodium (1:3)
    • Ferrate(3-), tris[5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6]-, trisodium
    • Trisodium tris(5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6)ferrate(3-)
    • Trisodium tris[5,6-dihydro-5-(hydroxyimino)-6-oxonaphthalene-2-sulphonato(2-)-N5,O6]ferrate(3-)
    • Ferrate(3-), tris[5,6-dihydro-5-(hydroxyimino-.kappa.N)-6-(oxo-.kappa.O)-2-naphthalenesulfonato(2-)]-, sodium (1:3)
    • RefChem:572084
    • ACID GREEN 1 [INCI]
    • DTXCID2024406
    • Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6)-, trisodium (9CI)
    • IRON, TRIS(5,6-DIHYDRO-5,6-DIOXO-2-NAPHTHALENESULFONIC ACID 5-OXIMATO)-, TRISODIUM SALT
    • 19381-50-1
    • Naphthol Green
    • D and C Green 1
    • C.I. 10020
    • Ext D and C Green No. 1
    • NSC 9830
    • W60I5H3VMQ
    • CI 10020
    • C30H15FeN3Na3O15S3
    • iron(3+) sodium 5-(oxidoimino)-6-oxo-5,6-dihydronaphthalene-2-sulfonate (1/3/3)
    • Ferrate(3)-, tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6)-, trisodium
    • Tris(5,6-dihydro-5-(hydroxyimino)-6-oxo-2-naphthalenesulfonato(2-)-N5,O6)ferrate(3), trisodium
    • MFCD00003886
    • UNII-W60I5H3VMQ
    • Ext D and C Green No. 1 (VAN)
    • Acid Green 1 ( Product)
    • MSK5805
    • ZHHKVLCBIBQGKO-HVBBDIOSSA-H
    • AKOS024319595
    • N0306
    • NS00019651
    • F71257
    • ACID GREEN 1 (ACID GREEN O C.I. 10200)
    • Q10859529
    • ferric;trisodium;5-nitroso-6-oxido-naphthalene-2-sulfonate
    • trisodium;iron(3+);5-nitroso-6-oxidonaphthalene-2-sulfonate
    • ferric;trisodium;(5E)-5-oxidoimino-6-oxo-naphthalene-2-sulfonate
    • Ferrate(3-), tris(5,6-dihydro-5-(hydroxyimino-kappaN)-6-(oxo-kappaO)-2-naphthalenesulfonato(2-))-, trisodium
    • 19381-50-1

  • Applications

    C.I. Acid Green 1 (CAS 19381-50-1) is an acid dye used primarily for dyeing textile fibers, notably protein fibers such as wool and silk, and is suitable for polyamide (nylon) fibers under acidic conditions with appropriate fixation; it is also used for leather coloration; and can be employed in fabric printing as well as in industrial coatings/inks to produce a green color.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 21.02
    methanol 33.93
    isopropanol 9.47
    water 0.22
    ethyl acetate 30.33
    n-propanol 12.72
    acetone 91.36
    n-butanol 10.9
    acetonitrile 49.11
    DMF 156.47
    toluene 11.48
    isobutanol 5.77
    1,4-dioxane 42.21
    methyl acetate 38.01
    THF 95.34
    2-butanone 57.09
    n-pentanol 12.11
    sec-butanol 8.35
    n-hexane 0.2
    ethylene glycol 13.6
    NMP 80.67
    cyclohexane 0.29
    DMSO 113.09
    n-butyl acetate 29.05
    n-octanol 22.79
    chloroform 9.09
    n-propyl acetate 29.8
    acetic acid 11.57
    dichloromethane 20.11
    cyclohexanone 46.53
    propylene glycol 7.02
    isopropyl acetate 22.96
    DMAc 103.79
    2-ethoxyethanol 62.93
    isopentanol 8.44
    n-heptane 0.87
    ethyl formate 31.75
    1,2-dichloroethane 24.63
    n-hexanol 13.55
    2-methoxyethanol 111.35
    isobutyl acetate 10.31
    tetrachloromethane 0.81
    n-pentyl acetate 44.07
    transcutol 203.1
    n-heptanol 16.9
    ethylbenzene 5.64
    MIBK 25.15
    2-propoxyethanol 67.3
    tert-butanol 12.23
    MTBE 8.69
    2-butoxyethanol 52.56
    propionic acid 9.89
    o-xylene 7.65
    formic acid 22.43
    diethyl ether 16.92
    m-xylene 7.8
    p-xylene 6.71
    chlorobenzene 12.32
    dimethyl carbonate 24.07
    n-octane 1.07
    formamide 79.46
    cyclopentanone 81.7
    2-pentanone 47.66
    anisole 23.02
    cyclopentyl methyl ether 19.43
    gamma-butyrolactone 84.42
    1-methoxy-2-propanol 53.85
    pyridine 48.5
    3-pentanone 29.61
    furfural 85.92
    n-dodecane 1.69
    diethylene glycol 70.13
    diisopropyl ether 4.25
    tert-amyl alcohol 9.24
    acetylacetone 82.45
    n-hexadecane 1.98
    acetophenone 35.48
    methyl propionate 32.26
    isopentyl acetate 19.82
    trichloroethylene 34.0
    n-nonanol 23.55
    cyclohexanol 7.48
    benzyl alcohol 22.63
    2-ethylhexanol 9.55
    isooctanol 11.31
    dipropyl ether 13.77
    1,2-dichlorobenzene 12.62
    ethyl lactate 19.79
    propylene carbonate 29.16
    n-methylformamide 87.24
    2-pentanol 7.01
    n-pentane 0.29
    1-propoxy-2-propanol 38.51
    1-methoxy-2-propyl acetate 43.51
    2-(2-methoxypropoxy) propanol 48.58
    mesitylene 4.71
    ε-caprolactone 40.05
    p-cymene 7.74
    epichlorohydrin 98.95
    1,1,1-trichloroethane 7.57
    2-aminoethanol 14.65
    morpholine-4-carbaldehyde 104.55
    sulfolane 73.3
    2,2,4-trimethylpentane 0.19
    2-methyltetrahydrofuran 28.09
    n-hexyl acetate 44.93
    isooctane 0.18
    2-(2-butoxyethoxy)ethanol 86.92
    sec-butyl acetate 14.92
    tert-butyl acetate 27.37
    decalin 0.43
    glycerin 18.69
    diglyme 125.36
    acrylic acid 12.75
    isopropyl myristate 22.09
    n-butyric acid 13.61
    acetyl acetate 19.5
    di(2-ethylhexyl) phthalate 17.25
    ethyl propionate 23.48
    nitromethane 84.0
    1,2-diethoxyethane 69.91
    benzonitrile 35.39
    trioctyl phosphate 14.51
    1-bromopropane 7.82
    gamma-valerolactone 116.02
    n-decanol 19.39
    triethyl phosphate 11.05
    4-methyl-2-pentanol 4.63
    propionitrile 31.2
    vinylene carbonate 29.49
    1,1,2-trichlorotrifluoroethane 38.43
    DMS 33.65
    cumene 3.85
    2-octanol 14.87
    2-hexanone 35.42
    octyl acetate 29.61
    limonene 7.79
    1,2-dimethoxyethane 100.54
    ethyl orthosilicate 9.83
    tributyl phosphate 18.42
    diacetone alcohol 40.66
    N,N-dimethylaniline 15.0
    acrylonitrile 58.11
    aniline 14.16
    1,3-propanediol 26.5
    bromobenzene 10.3
    dibromomethane 10.32
    1,1,2,2-tetrachloroethane 21.47
    2-methyl-cyclohexyl acetate 17.56
    tetrabutyl urea 37.67
    diisobutyl methanol 7.04
    2-phenylethanol 28.58
    styrene 7.23
    dioctyl adipate 26.81
    dimethyl sulfate 30.25
    ethyl butyrate 22.13
    methyl lactate 26.38
    butyl lactate 32.88
    diethyl carbonate 14.74
    propanediol butyl ether 43.87
    triethyl orthoformate 15.21
    p-tert-butyltoluene 7.0
    methyl 4-tert-butylbenzoate 34.97
    morpholine 44.89
    tert-butylamine 4.26
    n-dodecanol 14.63
    dimethoxymethane 97.38
    ethylene carbonate 22.92
    cyrene 37.29
    2-ethoxyethyl acetate 71.45
    2-ethylhexyl acetate 15.81
    1,2,4-trichlorobenzene 14.82
    4-methylpyridine 39.68
    dibutyl ether 23.97
    2,6-dimethyl-4-heptanol 7.04
    DEF 49.07
    dimethyl isosorbide 81.48
    tetrachloroethylene 12.6
    eugenol 49.21
    triacetin 38.11
    span 80 33.36
    1,4-butanediol 11.88
    1,1-dichloroethane 10.97
    2-methyl-1-pentanol 8.86
    methyl formate 72.01
    2-methyl-1-butanol 6.62
    n-decane 2.33
    butyronitrile 25.11
    3,7-dimethyl-1-octanol 14.7
    1-chlorooctane 11.5
    1-chlorotetradecane 5.88
    n-nonane 1.77
    undecane 2.01
    tert-butylcyclohexane 0.34
    cyclooctane 0.23
    cyclopentanol 9.91
    tetrahydropyran 18.26
    tert-amyl methyl ether 9.25
    2,5,8-trioxanonane 100.21
    1-hexene 1.67
    2-isopropoxyethanol 33.53
    2,2,2-trifluoroethanol 8.79
    methyl butyrate 30.64

    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