Cytochrome C

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  • Identifiers

    CAS number
    9007-43-6

    Molecular formula
    C42H52FeN8O6S2

    SMILES
    CC1=C(C2=CC3=C(C(=C([N-]3)C=C4C(=C(C(=N4)C=C5C(=C(C(=N5)C=C1[N-]2)C)C(C)SCC(C(=O)NC)N)C)C(C)SCC(C(=O)NC)N)C)CCC(=O)O)CCC(=O)O.[Fe+2]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 56.55%
    Meaty 49.06%
    Savory 43.68%
    Roasted 39.1%
    Cooked 31.78%
    Milky 21.99%
    Fatty 21.19%
    Cooling 20.86%
    Burnt 19.24%
    Beefy 19.2%

     

    Flavor
    Bitter 75.74%
    Odorless 44.0%
    Bland 32.63%
    Roasted 22.26%
    Mild 21.92%
    Sweet-like 21.2%
    Nitrile 19.79%
    Cedarleaf 19.54%
    Taco 19.32%
    Scallion 19.18%

     

    Odor impact est.
    Odorless

  • Properties

    pKa est.
    3.55 (weak acid)

    Molecular weight
    884.9 g/mol

    Flash point

    • 367.95 ˚C est.

  • Synonyms

    • 9007-43-6
    • Cytochrome C [JAN]
    • Cytochrome C (JAN)
    • Myohematin
    • Cromoci
    • Cytorest
    • Landrax
    • Hematin-protein
    • Horse-cytochrome C
    • Nitrosylferricytochrome C
    • Horse heart cytochrome C
    • Hematinprotein
    • Cytochrome ct
    • Holocytochrome c
    • Horsecytochrome C
    • c-type cytochrome
    • Cyt c
    • Cytorest (TN)
    • ferrous;3-(7,12-bis(1-(2-amino-3-(methylamino)-3-oxo-propyl)sulfanylethyl)-18-(2-carboxyethyl)-3,8,13,17-tetramethyl-porphyrin-21,23-diid-2-yl)propanoic acid
    • ferrous;3-[7,12-bis[1-[2-amino-3-(methylamino)-3-oxo-propyl]sulfanylethyl]-18-(2-carboxyethyl)-3,8,13,17-tetramethyl-porphyrin-21,23-diid-2-yl]propanoic acid
    • EINECS 232-700-9
    • RefChem:581438
    • Q5ED5J76AX
    • Cytochrome c, from equine heart
    • DTXSID6046894
    • CHEBI:18070
    • 232-700-9
    • 3-[8,13-bis[1-[2-amino-3-(methylamino)-3-oxopropyl]sulfanylethyl]-18-(2-carboxyethyl)-3,7,12,17-tetramethylporphyrin-21,24-diid-2-yl]propanoic acid;iron(2+)
    • ferrous;3-[8,13-bis[1-[2-amino-3-(methylamino)-3-oxo-propyl]sulfanylethyl]-18-(2-carboxyethyl)-3,7,12,17-tetramethyl-porphyrin-21,24-diid-2-yl]propanoic acid
    • Cytochrome c from bovine heart
    • Cromoci, CYC, CYCS, Cytochrome CymA, Cytomac P, Cytorest, Ferricytochrome c, Ferrocytochrome c
    • orb1297881
    • SCHEMBL29360156
    • FC32167
    • H53306
    • Q26840776
    • 3-[8,13-bis[1-[2-amino-3-(methylamino)-3-oxopropyl]sulfanylethyl]-18-(2-carboxyethyl)-3,7,12,17-tetramethylporphyrin-21,24-diid-2-yl]propanoic acid
    • 9007-43-6

  • Applications

    Cytochrome C (CAS 9007-43-6) is widely used as a biochemical reagent and analytical standard for characterizing redox-active proteins in research, supporting spectroscopic measurements and enzyme activity assays. It also serves as a model protein for folding studies and electron-transfer kinetics, and functions as a redox mediator in bioelectrochemical systems and biosensors. In addition, it is employed in teaching and educational kits as reference material for calibrating UV-Vis spectroscopy of heme proteins.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 0.92
    methanol 5.67
    isopropanol 0.44
    water 0.16
    ethyl acetate 0.54
    n-propanol 0.7
    acetone 1.17
    n-butanol 0.4
    acetonitrile 0.5
    DMF 22.89
    toluene 0.07
    isobutanol 0.31
    1,4-dioxane 1.61
    methyl acetate 1.32
    THF 2.78
    2-butanone 1.31
    n-pentanol 0.28
    sec-butanol 0.36
    n-hexane 0.01
    ethylene glycol 2.54
    NMP 23.97
    cyclohexane 0.01
    DMSO 6.68
    n-butyl acetate 0.28
    n-octanol 0.12
    chloroform 2.04
    n-propyl acetate 0.43
    acetic acid 8.03
    dichloromethane 1.75
    cyclohexanone 1.35
    propylene glycol 2.56
    isopropyl acetate 0.27
    DMAc 22.07
    2-ethoxyethanol 3.33
    isopentanol 0.2
    n-heptane 0.01
    ethyl formate 1.22
    1,2-dichloroethane 0.57
    n-hexanol 0.13
    2-methoxyethanol 8.58
    isobutyl acetate 0.19
    tetrachloromethane 0.2
    n-pentyl acetate 0.43
    transcutol 3.51
    n-heptanol 0.18
    ethylbenzene 0.04
    MIBK 0.21
    2-propoxyethanol 2.51
    tert-butanol 0.2
    MTBE 0.14
    2-butoxyethanol 2.06
    propionic acid 2.39
    o-xylene 0.05
    formic acid 17.15
    diethyl ether 0.23
    m-xylene 0.04
    p-xylene 0.06
    chlorobenzene 0.15
    dimethyl carbonate 1.86
    n-octane 0.0
    formamide 12.84
    cyclopentanone 3.5
    2-pentanone 0.61
    anisole 0.18
    cyclopentyl methyl ether 0.38
    gamma-butyrolactone 6.11
    1-methoxy-2-propanol 3.81
    pyridine 1.58
    3-pentanone 0.54
    furfural 8.08
    n-dodecane 0.0
    diethylene glycol 4.07
    diisopropyl ether 0.03
    tert-amyl alcohol 0.23
    acetylacetone 1.2
    n-hexadecane 0.0
    acetophenone 0.44
    methyl propionate 1.2
    isopentyl acetate 0.19
    trichloroethylene 2.64
    n-nonanol 0.13
    cyclohexanol 0.21
    benzyl alcohol 0.43
    2-ethylhexanol 0.06
    isooctanol 0.11
    dipropyl ether 0.14
    1,2-dichlorobenzene 0.18
    ethyl lactate 0.96
    propylene carbonate 2.1
    n-methylformamide 9.59
    2-pentanol 0.15
    n-pentane 0.01
    1-propoxy-2-propanol 1.21
    1-methoxy-2-propyl acetate 0.74
    2-(2-methoxypropoxy) propanol 1.22
    mesitylene 0.02
    ε-caprolactone 1.71
    p-cymene 0.02
    epichlorohydrin 3.74
    1,1,1-trichloroethane 0.3
    2-aminoethanol 2.55
    morpholine-4-carbaldehyde 15.27
    sulfolane 9.38
    2,2,4-trimethylpentane 0.0
    2-methyltetrahydrofuran 0.72
    n-hexyl acetate 0.34
    isooctane 0.0
    2-(2-butoxyethoxy)ethanol 1.82
    sec-butyl acetate 0.19
    tert-butyl acetate 0.19
    decalin 0.0
    glycerin 9.26
    diglyme 3.85
    acrylic acid 5.25
    isopropyl myristate 0.07
    n-butyric acid 1.55
    acetyl acetate 0.49
    di(2-ethylhexyl) phthalate 0.22
    ethyl propionate 0.38
    nitromethane 12.05
    1,2-diethoxyethane 0.43
    benzonitrile 0.27
    trioctyl phosphate 0.13
    1-bromopropane 0.15
    gamma-valerolactone 12.82
    n-decanol 0.07
    triethyl phosphate 0.22
    4-methyl-2-pentanol 0.06
    propionitrile 0.38
    vinylene carbonate 2.84
    1,1,2-trichlorotrifluoroethane 13.29
    DMS 0.69
    cumene 0.02
    2-octanol 0.09
    2-hexanone 0.45
    octyl acetate 0.15
    limonene 0.03
    1,2-dimethoxyethane 3.05
    ethyl orthosilicate 0.17
    tributyl phosphate 0.14
    diacetone alcohol 0.76
    N,N-dimethylaniline 0.15
    acrylonitrile 1.07
    aniline 0.31
    1,3-propanediol 2.79
    bromobenzene 0.11
    dibromomethane 0.52
    1,1,2,2-tetrachloroethane 1.9
    2-methyl-cyclohexyl acetate 0.17
    tetrabutyl urea 0.29
    diisobutyl methanol 0.03
    2-phenylethanol 0.27
    styrene 0.04
    dioctyl adipate 0.19
    dimethyl sulfate 4.75
    ethyl butyrate 0.25
    methyl lactate 3.04
    butyl lactate 0.96
    diethyl carbonate 0.21
    propanediol butyl ether 2.23
    triethyl orthoformate 0.28
    p-tert-butyltoluene 0.02
    methyl 4-tert-butylbenzoate 0.57
    morpholine 2.52
    tert-butylamine 0.06
    n-dodecanol 0.04
    dimethoxymethane 4.76
    ethylene carbonate 1.46
    cyrene 2.55
    2-ethoxyethyl acetate 1.29
    2-ethylhexyl acetate 0.15
    1,2,4-trichlorobenzene 0.33
    4-methylpyridine 0.8
    dibutyl ether 0.09
    2,6-dimethyl-4-heptanol 0.03
    DEF 1.78
    dimethyl isosorbide 1.46
    tetrachloroethylene 1.31
    eugenol 0.96
    triacetin 0.91
    span 80 1.01
    1,4-butanediol 1.04
    1,1-dichloroethane 0.39
    2-methyl-1-pentanol 0.15
    methyl formate 7.05
    2-methyl-1-butanol 0.23
    n-decane 0.01
    butyronitrile 0.27
    3,7-dimethyl-1-octanol 0.05
    1-chlorooctane 0.03
    1-chlorotetradecane 0.01
    n-nonane 0.01
    undecane 0.0
    tert-butylcyclohexane 0.0
    cyclooctane 0.0
    cyclopentanol 0.54
    tetrahydropyran 0.45
    tert-amyl methyl ether 0.14
    2,5,8-trioxanonane 2.04
    1-hexene 0.04
    2-isopropoxyethanol 1.23
    2,2,2-trifluoroethanol 6.0
    methyl butyrate 0.65

    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