Acid Green 50

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  • Identifiers

    CAS number
    3087-16-9

    Molecular formula
    C27H25N2NaO7S2

    SMILES
    CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 58.79%
    Fruity 23.12%
    Cooked 20.1%
    Bitter 19.39%
    Savory 19.11%
    Grape 18.61%
    Roasted 18.45%
    Fatty 16.81%
    Fresh 16.79%
    Citrus 15.18%

     

    Flavor
    Bitter 90.38%
    Odorless 25.85%
    Nitrile 19.94%
    Bland 17.96%
    Cedarleaf 17.85%
    Lovage 17.82%
    Very strong 17.74%
    Oriental 17.62%
    Taco 17.61%
    Bread crust 17.44%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    5.3 (weak acid)

    Molecular weight
    576.6 g/mol

    Flash point

    • 325.22 ˚C est.

  • Synonyms

    • Acid green 50
    • Green S
    • Lissamine Green B
    • Food Green S
    • Lissamine Green BN
    • C.I. 44090
    • CI 44090
    • 9B7E8Y9D0X
    • DTXSID4046577
    • DTXCID2026577
    • NSC-71959
    • NSC-11237
    • Methanaminium, N-(4-((4-(dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, inner salt, sodium salt (1:1)
    • RefChem:109241
    • 221-409-2
    • 3087-16-9
    • Acid Leather Green S
    • Acid Brilliant Green BS
    • Green 5
    • C.I. Acid Green 50
    • Calocid Green S
    • Hexacol Green S
    • Acilan Green BS
    • Calcocid Green S
    • Kiton Green S
    • Vondacid Green S
    • Brilliant Acid Green BS
    • Erio Green S
    • Water Green SX
    • Calocid Green SB
    • Pharmacid Green S
    • Calcocid Green SB
    • Naphthazine Green S
    • Edicol Supra Green B
    • Unitertracid Green BS
    • Edicol Supra Green BS
    • Vert acide brilliant bs
    • 12078 Green
    • Pontacyl Green Son and S
    • C.I. Food Green 4
    • C.I. Acid Green 50, monosodium salt
    • Sodium 4-((4-(dimethylamino)phenyl)(4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene)methyl)-3-hydroxynaphthalene-2,7-disulfonate
    • Green BS
    • Acid Green 50 (Technical Grade)
    • Zelen kysela BS [Czech]
    • Zelen kysela BS
    • Zelen kysela 50 [Czech]
    • Zelen kysela 50
    • Methanaminium, N-[4-[[4-(dimethylamino)phenyl](2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, inner salt, monosodium salt
    • sodium 4-{[4-(dimethylamino)phenyl][4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl}-3-hydroxynaphthalene-2,7-disulfonate
    • Schultz Nr. 836 [German]
    • CCRIS 1908
    • Zelen potravinarska 4 [Czech]
    • Zelen potravinarska 4
    • Schultz Nr. 836
    • Brilliantsaeure gruen BS [German]
    • Brilliantsaeure gruen BS
    • NCGC00166248-01
    • EINECS 221-409-2
    • NSC 11237
    • NSC 71959
    • UNII-9B7E8Y9D0X
    • E 142
    • 4-{[4-(dimethylamino)phenyl][4-(dimethylylidene)cyclohexa-2,5-dienylidene]meth yl}-3-hydroxynaphthalene-2,7-disulfonic acid, sodium salt
    • Methanaminium, N-(4-((4-(dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, inner salt, monosodium salt
    • ACID GREEN BS
    • ACID GREEN RS
    • GREEN S [MI]
    • Acid Green 50 100 microg/mL in Acetonitrile
    • Green S, analytical standard
    • SCHEMBL24354
    • Methanaminium, N-(4-((4-(dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methyl-, hydroxide, inner salt, monosodium salt
    • SCHEMBL341870
    • CHEMBL2028349
    • GREEN S (E 142)
    • SCHEMBL29350984
    • MSK5893
    • Tox21_112374
    • SBB057637
    • AKOS015903470
    • AKOS024319596
    • FA40988
    • Ammonium, (4-(p-(dimethylamino)-alpha-(2-hydroxy-3,6-disulfo-1-naphthyl)benzylidene)-2,5-cyclohexadien-1-ylidene)dimethyl-, hydroxide, inner salt, sodium salt
    • AS-81513
    • Hydrogen (4-(4-(dimethylamino)-alpha-(2-hydroxy-3,6-disulphonato-1-naphthyl)benzylidene)cyclohexa-2,5-dien-1-ylidene)dimethylammonium, monosodium salt
    • N-(4-((4-(Dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1-naphthale- nyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methylmethanaminium hydroxide, inner salt, monosodium salt
    • N-(4-((4-(Dimethylamino)phenyl)(2-hydroxy-3,6-disulfo-1-naphthalenyl)methylene)-2,5-cyclohexadien-1-ylidene)-N-methylmethanaminium, hydroxide, inner salt, monosodium salt
    • CAS-3087-16-9
    • Lissamine(TM) Green B, Dye content 60 %
    • G0250
    • ST50411622
    • D90736
    • Q420143
    • 1264298-48-7
    • sodium;4-[[4-(dimethylamino)phenyl]-(4-dimethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-3-hydroxynaphthalene-2,7-disulfonate
    • 3087-16-9

  • Applications

    Acid Green 50 (CAS 3087-16-9) is used primarily as an acid dye for textile fibers, notably wool and silk, with potential application on nylon; it also participates in leather dyeing processes. In industrial colorant applications, it is used as a colorant in coatings and printing inks, and it can also be used to color paper and paper-based products in specialized coloring steps, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.58
    methanol 2.98
    isopropanol 0.82
    water 0.01
    ethyl acetate 0.93
    n-propanol 1.26
    acetone 5.75
    n-butanol 0.45
    acetonitrile 1.96
    DMF 41.64
    toluene 0.16
    isobutanol 0.45
    1,4-dioxane 2.99
    methyl acetate 2.91
    THF 7.37
    2-butanone 4.23
    n-pentanol 0.36
    sec-butanol 0.6
    n-hexane 0.0
    ethylene glycol 1.39
    NMP 19.93
    cyclohexane 0.01
    DMSO 15.88
    n-butyl acetate 0.75
    n-octanol 0.19
    chloroform 4.04
    n-propyl acetate 1.12
    acetic acid 7.92
    dichloromethane 3.04
    cyclohexanone 2.47
    propylene glycol 2.68
    isopropyl acetate 0.5
    DMAc 33.97
    2-ethoxyethanol 4.09
    isopentanol 0.22
    n-heptane 0.01
    ethyl formate 1.67
    1,2-dichloroethane 1.27
    n-hexanol 0.18
    2-methoxyethanol 9.52
    isobutyl acetate 0.45
    tetrachloromethane 0.11
    n-pentyl acetate 0.81
    transcutol 5.02
    n-heptanol 0.24
    ethylbenzene 0.06
    MIBK 0.43
    2-propoxyethanol 4.08
    tert-butanol 0.43
    MTBE 0.22
    2-butoxyethanol 2.35
    propionic acid 2.85
    o-xylene 0.09
    formic acid 4.9
    diethyl ether 0.34
    m-xylene 0.07
    p-xylene 0.12
    chlorobenzene 0.32
    dimethyl carbonate 2.45
    n-octane 0.0
    formamide 7.92
    cyclopentanone 7.58
    2-pentanone 1.21
    anisole 0.51
    cyclopentyl methyl ether 0.48
    gamma-butyrolactone 9.09
    1-methoxy-2-propanol 5.51
    pyridine 4.29
    3-pentanone 1.02
    furfural 8.2
    n-dodecane 0.0
    diethylene glycol 4.08
    diisopropyl ether 0.04
    tert-amyl alcohol 0.35
    acetylacetone 3.0
    n-hexadecane 0.01
    acetophenone 1.09
    methyl propionate 1.83
    isopentyl acetate 0.49
    trichloroethylene 5.53
    n-nonanol 0.22
    cyclohexanol 0.22
    benzyl alcohol 0.87
    2-ethylhexanol 0.09
    isooctanol 0.15
    dipropyl ether 0.28
    1,2-dichlorobenzene 0.3
    ethyl lactate 1.38
    propylene carbonate 2.39
    n-methylformamide 12.12
    2-pentanol 0.16
    n-pentane 0.01
    1-propoxy-2-propanol 2.51
    1-methoxy-2-propyl acetate 1.65
    2-(2-methoxypropoxy) propanol 2.22
    mesitylene 0.03
    ε-caprolactone 2.27
    p-cymene 0.06
    epichlorohydrin 8.25
    1,1,1-trichloroethane 0.6
    2-aminoethanol 2.38
    morpholine-4-carbaldehyde 14.52
    sulfolane 10.83
    2,2,4-trimethylpentane 0.0
    2-methyltetrahydrofuran 1.18
    n-hexyl acetate 0.63
    isooctane 0.0
    2-(2-butoxyethoxy)ethanol 2.58
    sec-butyl acetate 0.4
    tert-butyl acetate 0.43
    decalin 0.0
    glycerin 5.43
    diglyme 5.04
    acrylic acid 4.92
    isopropyl myristate 0.2
    n-butyric acid 1.53
    acetyl acetate 0.9
    di(2-ethylhexyl) phthalate 0.49
    ethyl propionate 0.71
    nitromethane 20.47
    1,2-diethoxyethane 1.07
    benzonitrile 0.96
    trioctyl phosphate 0.27
    1-bromopropane 0.31
    gamma-valerolactone 17.15
    n-decanol 0.14
    triethyl phosphate 0.34
    4-methyl-2-pentanol 0.07
    propionitrile 1.36
    vinylene carbonate 2.99
    1,1,2-trichlorotrifluoroethane 12.38
    DMS 1.17
    cumene 0.03
    2-octanol 0.13
    2-hexanone 1.2
    octyl acetate 0.37
    limonene 0.06
    1,2-dimethoxyethane 5.71
    ethyl orthosilicate 0.29
    tributyl phosphate 0.31
    diacetone alcohol 1.5
    N,N-dimethylaniline 0.33
    acrylonitrile 3.48
    aniline 0.58
    1,3-propanediol 2.17
    bromobenzene 0.23
    dibromomethane 1.03
    1,1,2,2-tetrachloroethane 3.59
    2-methyl-cyclohexyl acetate 0.49
    tetrabutyl urea 0.75
    diisobutyl methanol 0.05
    2-phenylethanol 0.68
    styrene 0.09
    dioctyl adipate 0.58
    dimethyl sulfate 4.14
    ethyl butyrate 0.62
    methyl lactate 3.6
    butyl lactate 1.42
    diethyl carbonate 0.46
    propanediol butyl ether 2.36
    triethyl orthoformate 0.58
    p-tert-butyltoluene 0.05
    methyl 4-tert-butylbenzoate 1.2
    morpholine 4.38
    tert-butylamine 0.1
    n-dodecanol 0.09
    dimethoxymethane 7.81
    ethylene carbonate 1.62
    cyrene 3.72
    2-ethoxyethyl acetate 2.0
    2-ethylhexyl acetate 0.35
    1,2,4-trichlorobenzene 0.63
    4-methylpyridine 1.95
    dibutyl ether 0.17
    2,6-dimethyl-4-heptanol 0.05
    DEF 2.33
    dimethyl isosorbide 3.48
    tetrachloroethylene 1.39
    eugenol 1.9
    triacetin 1.68
    span 80 1.54
    1,4-butanediol 0.9
    1,1-dichloroethane 0.99
    2-methyl-1-pentanol 0.19
    methyl formate 9.31
    2-methyl-1-butanol 0.27
    n-decane 0.01
    butyronitrile 0.73
    3,7-dimethyl-1-octanol 0.12
    1-chlorooctane 0.05
    1-chlorotetradecane 0.02
    n-nonane 0.01
    undecane 0.01
    tert-butylcyclohexane 0.0
    cyclooctane 0.0
    cyclopentanol 0.74
    tetrahydropyran 0.89
    tert-amyl methyl ether 0.17
    2,5,8-trioxanonane 3.37
    1-hexene 0.03
    2-isopropoxyethanol 1.85
    2,2,2-trifluoroethanol 2.66
    methyl butyrate 1.2

    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