Pigment Red 68

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  • Identifiers

    CAS number
    5850-80-6

    Molecular formula
    C34H18CaCl2N4Na2O12S2

    SMILES
    C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C(=C3)C(=O)O)Cl)S(=O)(=O)[O-])[O-].C1=CC=C2C(=C1)C=CC(=C2N=NC3=C(C=C(C(=C3)C(=O)O)Cl)S(=O)(=O)[O-])[O-].[Na+].[Na+].[Ca+2]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 77.13%
    Bitter 22.41%
    Grape 22.29%
    Cooked 20.9%
    Savory 18.98%
    Fruity 17.05%
    Milky 16.49%
    Burnt 15.69%
    Clean 14.98%
    Fatty 13.81%

     

    Flavor
    Bitter 87.66%
    Odorless 42.25%
    Bland 22.05%
    Mild 21.02%
    Nitrile 20.89%
    Very strong 18.86%
    Sweet-like 18.65%
    Bread crust 18.64%
    Indole 18.63%
    Taco 18.54%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    2.91 (strong acid)

    Molecular weight
    895.6 g/mol

    Flash point

    • 268.38 ˚C est.

  • Synonyms

    • CI 15525
    • 8G74PB649I
    • PERMANENT RED NCR
    • EINECS 227-456-5
    • Benzoic acid, 2-chloro-5-[(2-hydroxy-1-naphthalenyl)azo]-4-sulfo-, calcium sodium salt (2:1:2)
    • PERMANENT RED TONER NCR
    • DTXSID2064024
    • 2-Chloro-5-((2-hydroxy-1-naphthalenyl)azo)-4-sulfobenzoic acid, calcium sodium salt (2:1:2)
    • Benzoic acid, 2-chloro-5-((2-hydroxy-1-naphthalenyl)azo)-4-sulfo-, calcium sodium salt (2:1:2)
    • Benzoic acid, 2-chloro-5-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-4-sulfo-, calcium sodium salt (2:1:2)
    • Benzoic acid, 2-chloro-5-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-4-sulfo-, calcium sodium salt (2:1:2)
    • RefChem:863211
    • DTXCID5042407
    • CI 15525 [INCI]
    • Benzoic acid, 2-chloro-5-(2-hydroxy-1-naphthalenyl)azo-4-sulfo-, calcium sodium salt (2:1:2)
    • 5850-80-6
    • Calcium disodium bis[2-chloro-5-[(2-hydroxy-1-naphthyl)azo]-4-sulphonatobenzoate]
    • UNII-8G74PB649I
    • Calcium disodium bis(2-chloro-5-((2-hydroxy-1-naphthyl)azo)-4-sulphonatobenzoate)
    • SCHEMBL341460
    • SCHEMBL29912704
    • XQNJGOIUVORJSE-BVGCOCJXSA-J
    • NS00047733
    • Q27270380
    • Calcium sodium 2-chloro-5-[(2-hydroxynaphthalen-1-yl)diazenyl]-4-sulfonatobenzoate (1/2/2)
    • 5850-80-6

  • Applications

    Pigment Red 68 (CAS 5850-80-6) is an organic red pigment widely used as a colorant in coatings and inks to yield bright, durable reds, and in polymers/plastics for stabilized coloration in molded and extruded articles. It may be employed in cosmetics/personal care formulations as a colorant where permitted by regulations, and in household products such as cleaners and surface treatments for decorative coloration. It is also evaluated for use in electronics-related coatings and in adhesive systems where color stability and compatibility with substrates are important.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 3.14
    methanol 2.62
    isopropanol 2.27
    water 0.0
    ethyl acetate 6.01
    n-propanol 3.9
    acetone 18.4
    n-butanol 2.16
    acetonitrile 3.38
    DMF 50.12
    toluene 2.16
    isobutanol 1.69
    1,4-dioxane 21.82
    methyl acetate 10.89
    THF 68.98
    2-butanone 27.84
    n-pentanol 1.62
    sec-butanol 4.27
    n-hexane 0.03
    ethylene glycol 1.24
    NMP 30.08
    cyclohexane 0.08
    DMSO 25.53
    n-butyl acetate 4.56
    n-octanol 1.45
    chloroform 2.81
    n-propyl acetate 5.2
    acetic acid 5.54
    dichloromethane 3.12
    cyclohexanone 21.78
    propylene glycol 2.49
    isopropyl acetate 4.35
    DMAc 70.2
    2-ethoxyethanol 11.07
    isopentanol 1.46
    n-heptane 0.06
    ethyl formate 3.07
    1,2-dichloroethane 2.98
    n-hexanol 1.25
    2-methoxyethanol 22.96
    isobutyl acetate 1.73
    tetrachloromethane 0.12
    n-pentyl acetate 4.44
    transcutol 30.6
    n-heptanol 1.47
    ethylbenzene 0.7
    MIBK 4.23
    2-propoxyethanol 14.09
    tert-butanol 2.29
    MTBE 3.39
    2-butoxyethanol 7.31
    propionic acid 5.07
    o-xylene 1.07
    formic acid 2.78
    diethyl ether 3.86
    m-xylene 0.85
    p-xylene 0.92
    chlorobenzene 1.0
    dimethyl carbonate 5.62
    n-octane 0.06
    formamide 8.04
    cyclopentanone 40.42
    2-pentanone 11.24
    anisole 4.04
    cyclopentyl methyl ether 6.99
    gamma-butyrolactone 27.77
    1-methoxy-2-propanol 16.54
    pyridine 17.36
    3-pentanone 9.46
    furfural 14.33
    n-dodecane 0.08
    diethylene glycol 7.84
    diisopropyl ether 0.68
    tert-amyl alcohol 3.5
    acetylacetone 16.87
    n-hexadecane 0.09
    acetophenone 5.5
    methyl propionate 9.73
    isopentyl acetate 3.23
    trichloroethylene 7.66
    n-nonanol 1.81
    cyclohexanol 3.02
    benzyl alcohol 3.32
    2-ethylhexanol 0.9
    isooctanol 1.1
    dipropyl ether 2.96
    1,2-dichlorobenzene 0.76
    ethyl lactate 3.68
    propylene carbonate 5.46
    n-methylformamide 12.88
    2-pentanol 1.63
    n-pentane 0.04
    1-propoxy-2-propanol 9.9
    1-methoxy-2-propyl acetate 9.82
    2-(2-methoxypropoxy) propanol 9.66
    mesitylene 0.41
    ε-caprolactone 15.26
    p-cymene 0.6
    epichlorohydrin 27.16
    1,1,1-trichloroethane 1.12
    2-aminoethanol 3.05
    morpholine-4-carbaldehyde 36.63
    sulfolane 28.34
    2,2,4-trimethylpentane 0.04
    2-methyltetrahydrofuran 15.78
    n-hexyl acetate 4.32
    isooctane 0.02
    2-(2-butoxyethoxy)ethanol 12.83
    sec-butyl acetate 3.11
    tert-butyl acetate 5.38
    decalin 0.04
    glycerin 5.2
    diglyme 23.64
    acrylic acid 5.0
    isopropyl myristate 2.43
    n-butyric acid 4.25
    acetyl acetate 3.13
    di(2-ethylhexyl) phthalate 2.05
    ethyl propionate 4.65
    nitromethane 19.28
    1,2-diethoxyethane 10.29
    benzonitrile 2.73
    trioctyl phosphate 1.47
    1-bromopropane 1.45
    gamma-valerolactone 56.0
    n-decanol 1.43
    triethyl phosphate 1.77
    4-methyl-2-pentanol 0.73
    propionitrile 3.81
    vinylene carbonate 4.99
    1,1,2-trichlorotrifluoroethane 14.51
    DMS 5.31
    cumene 0.37
    2-octanol 1.33
    2-hexanone 7.72
    octyl acetate 3.06
    limonene 0.86
    1,2-dimethoxyethane 24.7
    ethyl orthosilicate 1.68
    tributyl phosphate 1.81
    diacetone alcohol 10.25
    N,N-dimethylaniline 2.44
    acrylonitrile 6.97
    aniline 3.54
    1,3-propanediol 4.36
    bromobenzene 0.81
    dibromomethane 1.51
    1,1,2,2-tetrachloroethane 5.88
    2-methyl-cyclohexyl acetate 2.97
    tetrabutyl urea 4.78
    diisobutyl methanol 0.78
    2-phenylethanol 3.38
    styrene 0.92
    dioctyl adipate 3.61
    dimethyl sulfate 8.51
    ethyl butyrate 4.13
    methyl lactate 7.5
    butyl lactate 4.82
    diethyl carbonate 2.25
    propanediol butyl ether 5.65
    triethyl orthoformate 3.42
    p-tert-butyltoluene 0.61
    methyl 4-tert-butylbenzoate 5.75
    morpholine 30.37
    tert-butylamine 0.79
    n-dodecanol 1.07
    dimethoxymethane 26.21
    ethylene carbonate 3.91
    cyrene 8.77
    2-ethoxyethyl acetate 9.18
    2-ethylhexyl acetate 2.41
    1,2,4-trichlorobenzene 1.65
    4-methylpyridine 9.82
    dibutyl ether 2.74
    2,6-dimethyl-4-heptanol 0.78
    DEF 14.23
    dimethyl isosorbide 16.73
    tetrachloroethylene 2.35
    eugenol 6.54
    triacetin 6.0
    span 80 6.53
    1,4-butanediol 1.35
    1,1-dichloroethane 1.92
    2-methyl-1-pentanol 1.28
    methyl formate 7.93
    2-methyl-1-butanol 1.82
    n-decane 0.12
    butyronitrile 2.58
    3,7-dimethyl-1-octanol 1.18
    1-chlorooctane 0.67
    1-chlorotetradecane 0.33
    n-nonane 0.09
    undecane 0.1
    tert-butylcyclohexane 0.03
    cyclooctane 0.03
    cyclopentanol 4.69
    tetrahydropyran 13.75
    tert-amyl methyl ether 3.58
    2,5,8-trioxanonane 18.89
    1-hexene 0.29
    2-isopropoxyethanol 6.16
    2,2,2-trifluoroethanol 1.76
    methyl butyrate 5.97

    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