Amaranth

Overview IFRA Request a quote

  • Identifiers

    CAS number
    915-67-3

    Molecular formula
    C20H11N2Na3O10S3

    SMILES
    C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 83.95%
    Cooked 20.73%
    Savory 18.05%
    Bitter 17.08%
    Burnt 16.13%
    Roasted 13.99%
    Clean 13.22%
    Pungent 12.74%
    Grape 11.24%
    Sulfurous 11.05%

     

    Flavor
    Bitter 90.4%
    Odorless 32.24%
    Bland 20.08%
    Nitrile 19.63%
    Very strong 17.62%
    Taco 17.49%
    Bread crust 17.35%
    Indole 17.33%
    Roasted peanuts 16.98%
    Rotten 16.94%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    2.24 (strong acid)

    Molecular weight
    604.5 g/mol

    Flash point

    • 408.5 ˚C est.

  • Synonyms

    • AMARANTH
    • 915-67-3
    • Acid red 27
    • Azorubin S
    • C.I. Acid Red 27
    • Bordeaux S
    • FD & C Red No. 2
    • Amaranth (dye)
    • C.I. Food Red 9
    • Red No. 2
    • Food red 2
    • Food Red 9
    • Amaranthe
    • Amacid Amaranth
    • Edicol Amaranth
    • Kayaku Amaranth
    • Rakuto Amaranth
    • Acid Amaranth
    • Aizen Amaranth
    • Amaranth Extra
    • Amaranth Lake
    • Java Amaranth
    • Maple Amaranth
    • Toyo Amaranth
    • Dolkwal Amaranth
    • Hidacid Amaranth
    • Shikiso Amaranth
    • Takaoka Amaranth
    • Whortleberry Red
    • Amaranth A
    • Amaranth B
    • Amaranth R
    • Amaranth S
    • San-ei Amaranth
    • Amaranth WD
    • Calcocid amaranth
    • Acid Amaranth I
    • Acid Amaranth N
    • Amaranth BPC
    • Amaranth USP
    • Canacert Amaranth
    • Daishiki Amaranth
    • Eurocert Amaranth
    • Fast Red
    • Tertracid Red A
    • Kiton Rubine S
    • Naphthol Red B
    • Naphthol Red C
    • Naphthol Red O
    • Naphthol Red S
    • Neklacid Red A
    • Hispacid Red AM
    • Naphthol Red SI
    • S-Azo Rubine
    • Acilan Red SE
    • Azo Rubine SF
    • HD Amaranth B
    • Dye Red Raspberry
    • Solar Red O
    • Victoria Rubine O
    • Amaranth Dye (80%)
    • Naphthol Red LZS
    • Azo Ruby S
    • Cilefa Rubine 2B
    • HD Amaranth Supra
    • Acetacid Red 2BR
    • Azo Rubine S.FQ
    • Azo Red R
    • Certicol Amaranth S
    • Fruit Red A Geigy
    • Lissamine Amaranth AC
    • Usacert Red No. 2
    • Dye FDC Red 2
    • Hexacert Red No. 2
    • C.I. 16185
    • Acid Leather Rubine S
    • D and C Red 2
    • Red Dye No. 2
    • Edicol Supra Amaranth A
    • KCA Foodcol Amaranth A
    • L-Red 3
    • Hexacol Amaranth B Extra
    • CI 16185
    • FD&C Red 2
    • Bordeaux S Extra Pure A
    • D&C Red 2
    • Amaranth S Specially Pure
    • Raspberry Red For Jellies
    • FD and C Red No. 2
    • Azo rubine S
    • Victoria rubine O for food
    • C.I. Acid Red 27, trisodium salt
    • 1302 Red
    • 1508 Red
    • L Red Z 3050
    • Naphthol Red S Specially Pure
    • Kayaku Food Colour Red No. 2
    • Amaranthe usp (biological stain)
    • Sodium 3-hydroxy-4-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate
    • 37RBV3X49K
    • DTXSID2021232
    • Naphthol Red S Conc. Specially Pure
    • C.I.Acid Red 27 (free acid)
    • FD And C Red No. 2-Aluminium Lake
    • 1-(4-Sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid trisodium salt
    • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((4-sulfo-1-naphthyl)azo)-, trisodium salt
    • Amaranth (>85%)
    • E123
    • Lissamine
    • Amaranth red
    • Cranberry Red
    • Azorubine S
    • Amaranth J
    • Amarant [Czech]
    • Amaranth 85
    • Acid Red 27;Azorubin S;FD & C Red Dye No. 2
    • DTXCID201232
    • L-Rot 3 [German]
    • Trisodium salt of 1-(4-sulfo-1-naphthylazo)-2-naphthol-3,6-disulfonic acid
    • Amarant
    • Naptholrot S [German]
    • Amaranth Dye
    • Naptholrot S
    • Acid Leather Red I 2BW
    • amaranth (FD&C red no. 2)
    • GR 229055A
    • sodium (E)-3-hydroxy-4-((4-sulfonatonaphthalen-1-yl)diazenyl)naphthalene-2,7-disulfonate
    • 915-67-3

  • Applications

    Amaranth (CAS 915-67-3) is a synthetic azo dye used as a colorant in foods and beverages where permitted, and in cosmetics/personal care; it is also used as a pigment in inks and coatings, and as a colorant for plastics and textiles in the polymers/plastics and textiles sectors; its use in pharmaceutical products is possible where allowed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1.78
    methanol 2.34
    isopropanol 1.1
    water 0.01
    ethyl acetate 2.29
    n-propanol 1.6
    acetone 9.5
    n-butanol 0.9
    acetonitrile 2.34
    DMF 41.45
    toluene 0.66
    isobutanol 0.7
    1,4-dioxane 9.8
    methyl acetate 4.75
    THF 21.06
    2-butanone 8.42
    n-pentanol 0.57
    sec-butanol 1.19
    n-hexane 0.01
    ethylene glycol 1.67
    NMP 24.93
    cyclohexane 0.03
    DMSO 16.78
    n-butyl acetate 2.15
    n-octanol 1.16
    chloroform 0.92
    n-propyl acetate 1.95
    acetic acid 3.57
    dichloromethane 1.15
    cyclohexanone 7.85
    propylene glycol 2.04
    isopropyl acetate 1.67
    DMAc 33.67
    2-ethoxyethanol 5.11
    isopentanol 0.51
    n-heptane 0.03
    ethyl formate 2.35
    1,2-dichloroethane 1.05
    n-hexanol 0.5
    2-methoxyethanol 14.29
    isobutyl acetate 0.68
    tetrachloromethane 0.07
    n-pentyl acetate 3.23
    transcutol 16.15
    n-heptanol 0.8
    ethylbenzene 0.16
    MIBK 1.35
    2-propoxyethanol 7.87
    tert-butanol 0.85
    MTBE 0.88
    2-butoxyethanol 5.28
    propionic acid 2.62
    o-xylene 0.31
    formic acid 3.54
    diethyl ether 1.23
    m-xylene 0.29
    p-xylene 0.22
    chlorobenzene 0.45
    dimethyl carbonate 3.49
    n-octane 0.03
    formamide 7.5
    cyclopentanone 17.12
    2-pentanone 3.85
    anisole 0.96
    cyclopentyl methyl ether 1.91
    gamma-butyrolactone 15.52
    1-methoxy-2-propanol 8.58
    pyridine 7.97
    3-pentanone 2.89
    furfural 11.68
    n-dodecane 0.04
    diethylene glycol 6.2
    diisopropyl ether 0.2
    tert-amyl alcohol 0.87
    acetylacetone 8.13
    n-hexadecane 0.05
    acetophenone 1.73
    methyl propionate 3.76
    isopentyl acetate 1.29
    trichloroethylene 2.65
    n-nonanol 1.26
    cyclohexanol 0.8
    benzyl alcohol 1.16
    2-ethylhexanol 0.29
    isooctanol 0.49
    dipropyl ether 0.98
    1,2-dichlorobenzene 0.33
    ethyl lactate 1.7
    propylene carbonate 3.31
    n-methylformamide 10.73
    2-pentanol 0.5
    n-pentane 0.02
    1-propoxy-2-propanol 5.18
    1-methoxy-2-propyl acetate 4.47
    2-(2-methoxypropoxy) propanol 5.77
    mesitylene 0.13
    ε-caprolactone 6.31
    p-cymene 0.21
    epichlorohydrin 10.88
    1,1,1-trichloroethane 0.37
    2-aminoethanol 2.27
    morpholine-4-carbaldehyde 28.6
    sulfolane 16.36
    2,2,4-trimethylpentane 0.01
    2-methyltetrahydrofuran 4.06
    n-hexyl acetate 3.14
    isooctane 0.0
    2-(2-butoxyethoxy)ethanol 8.88
    sec-butyl acetate 0.88
    tert-butyl acetate 1.71
    decalin 0.01
    glycerin 5.71
    diglyme 13.04
    acrylic acid 3.56
    isopropyl myristate 1.42
    n-butyric acid 1.99
    acetyl acetate 1.66
    di(2-ethylhexyl) phthalate 1.22
    ethyl propionate 1.39
    nitromethane 14.71
    1,2-diethoxyethane 4.41
    benzonitrile 1.62
    trioctyl phosphate 1.0
    1-bromopropane 0.36
    gamma-valerolactone 34.03
    n-decanol 0.92
    triethyl phosphate 0.6
    4-methyl-2-pentanol 0.21
    propionitrile 1.89
    vinylene carbonate 3.59
    1,1,2-trichlorotrifluoroethane 8.93
    DMS 3.04
    cumene 0.08
    2-octanol 0.72
    2-hexanone 2.52
    octyl acetate 2.01
    limonene 0.27
    1,2-dimethoxyethane 9.03
    ethyl orthosilicate 0.52
    tributyl phosphate 1.09
    diacetone alcohol 3.64
    N,N-dimethylaniline 0.59
    acrylonitrile 4.09
    aniline 1.15
    1,3-propanediol 3.2
    bromobenzene 0.31
    dibromomethane 0.51
    1,1,2,2-tetrachloroethane 1.85
    2-methyl-cyclohexyl acetate 1.03
    tetrabutyl urea 3.06
    diisobutyl methanol 0.23
    2-phenylethanol 1.43
    styrene 0.22
    dioctyl adipate 2.09
    dimethyl sulfate 4.5
    ethyl butyrate 1.56
    methyl lactate 4.65
    butyl lactate 3.21
    diethyl carbonate 0.87
    propanediol butyl ether 6.02
    triethyl orthoformate 1.36
    p-tert-butyltoluene 0.21
    methyl 4-tert-butylbenzoate 2.57
    morpholine 11.7
    tert-butylamine 0.24
    n-dodecanol 0.64
    dimethoxymethane 12.7
    ethylene carbonate 2.46
    cyrene 4.51
    2-ethoxyethyl acetate 6.64
    2-ethylhexyl acetate 0.97
    1,2,4-trichlorobenzene 0.65
    4-methylpyridine 3.75
    dibutyl ether 1.26
    2,6-dimethyl-4-heptanol 0.23
    DEF 5.16
    dimethyl isosorbide 8.88
    tetrachloroethylene 1.03
    eugenol 3.57
    triacetin 4.2
    span 80 4.7
    1,4-butanediol 0.95
    1,1-dichloroethane 0.62
    2-methyl-1-pentanol 0.33
    methyl formate 8.34
    2-methyl-1-butanol 0.58
    n-decane 0.06
    butyronitrile 1.23
    3,7-dimethyl-1-octanol 0.61
    1-chlorooctane 0.35
    1-chlorotetradecane 0.16
    n-nonane 0.05
    undecane 0.05
    tert-butylcyclohexane 0.01
    cyclooctane 0.01
    cyclopentanol 1.75
    tetrahydropyran 3.41
    tert-amyl methyl ether 0.77
    2,5,8-trioxanonane 10.85
    1-hexene 0.07
    2-isopropoxyethanol 2.68
    2,2,2-trifluoroethanol 1.69
    methyl butyrate 2.03

    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