Taurine

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  • Identifiers

    CAS number
    107-35-7

    Molecular formula
    C2H7NO3S

    SMILES
    C(CS(=O)(=O)O)N

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Odorless 84.19%
    Savory 23.94%
    Sulfurous 22.48%
    Cooked 20.26%
    Meaty 18.11%
    Pungent 18.07%
    Roasted 15.25%
    Fishy 13.58%
    Onion 12.54%
    Garlic 12.36%

    Scent© AI

  • Properties

    XLogP3-AA
    -4.1

    Molecular weight
    125.15 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra slow

    Melting point expt.

    • 572 °F (decomposes) (NTP, 1992)
    • 300 °C
    • 325 °C (decomposes)

    Boiling point

    • It decomposes before reaching boiling point (325ºC)

    Flash point est.
    165.76 ˚C

    Solubility expt.

    • 1.2 [ug/mL] (The mean of the results at pH 7.4)
    • 50 to 100 mg/mL at 74.3 °F (NTP, 1992)
    • 65 g/L in cold water
    • In water, 94.9 g/L at 25 °C
    • Soluble in 15.5 parts of water at 12 °C; 100 parts of 95% alcohol dissolves 0.004 parts at 17 °C; insoluble in absolute alcohol
    • 80.7 mg/mL
    • Soluble in water
    • Soluble (in ethanol)

  • Synonyms

    • taurine
    • 2-aminoethanesulfonic acid
    • 107-35-7
    • Ethanesulfonic acid, 2-amino-
    • tauphon
    • L-Taurine
    • 2-Aminoethylsulfonic acid
    • 2-Sulfoethylamine
    • O-Due
    • taufon
    • 2-aminoethane-1-sulfonic acid
    • aminoethylsulfonic acid
    • Aminoethanesulfonic acid
    • beta-Aminoethylsulfonic acid
    • Taurina
    • FEMA No. 3813
    • Taurinum [Latin]
    • Taurina [Spanish]
    • Taurine [INN]
    • Taurinum
    • CCRIS 4721
    • C2H7NO3S
    • NCI-C60606
    • AI3-18307
    • Taurineold
    • Taukard
    • UNII-1EQV5MLY3D
    • 1EQV5MLY3D
    • 2-aminoethane sulfonic acid
    • EINECS 203-483-8
    • MFCD00008197
    • NSC 32428
    • NSC-32428
    • 1-Aminoethane-2-sulfonic acid
    • DTXSID3021304
    • CHEBI:15891
    • 2-aminoethyl sulfonate
    • HSDB 8167
    • NSC32428
    • Taurine [USP:INN:BAN]
    • .beta.-Aminoethylsulfonic acid
    • DTXCID301304
    • EC 203-483-8
    • Taurinum (Latin)
    • NCGC00015997-06
    • TAURINE (MART.)
    • TAURINE [MART.]
    • TAURINE (USP-RS)
    • TAURINE [USP-RS]
    • Taurine (USP:INN:BAN)
    • Aminoethylsulfonic acid (JAN)
    • TAURINE (USP MONOGRAPH)
    • TAURINE [USP MONOGRAPH]
    • 2-amino-ethanesulfonic acid
    • AMINOETHYLSULFONIC ACID [JAN]
    • CAS-107-35-7
    • SMR000326743
    • SR-01000076144
    • 2-AminoethanesulfonicAcid
    • Taurate
    • Aminoethylsulfonate
    • Taurine (TN)
    • b-Aminoethylsulfonate
    • Taurine (8CI)
    • 2-Aminoethylsulfonate
    • beta-Aminoethylsulfonate
    • Tocris-0209
    • TAURINE [VANDF]
    • 2aminoethanesulfonic acid
    • TAURINE [FHFI]
    • Taurine, >=99%
    • b-Aminoethylsulfonic acid
    • TAURINE [JAN]
    • TAURINE [MI]
    • Lopac-T-0625
    • 2-aminoethylsulphonic acid
    • TAURINE [WHO-DD]
    • WLN: Z2SWQ
    • 1-Aminoethane-2-sulfonate
    • bmse000120
    • bmse000805
    • bmse000863
    • Lopac0_001134
    • SCHEMBL23068
    • Taurine, >=98%, FG
    • MLS000859681
    • MLS001332383
    • MLS001332384
    • Taurine (JP18/USP/INN)
    • CHEMBL239243
    • GTPL2379
    • Taurine, >=99.0% (T)
    • HMS2093L13
    • HMS2233D19
    • HMS3263D09
    • HMS3370J18
    • Pharmakon1600-01505463
    • HY-B0351
    • RKL10149
    • taurine; 2-aminoethanesulfonic acid
    • Tox21_110277
    • Tox21_202520
    • Tox21_501134
    • BDBM50357220
    • HB2658
    • NSC759150
    • s2008
    • STL197941
    • AKOS005208848
    • Tox21_110277_1
    • CCG-205208
    • DB01956
    • Ethanesulfonic acid, 2-amino- (9CI)
    • FT29795
    • LP01134
    • NSC-759150
    • SDCCGSBI-0051101.P003
    • Taurine, BioUltra, >=99.5% (T)
    • Taurine, SAJ first grade, >=98.5%
    • NCGC00015997-01
    • NCGC00015997-02
    • NCGC00015997-03
    • NCGC00015997-04
    • NCGC00015997-05
    • NCGC00015997-07
    • NCGC00015997-08
    • NCGC00015997-10
    • NCGC00015997-20

  • Applications

    Taurine (CAS 107-35-7) is a naturally occurring sulfonic amino acid widely utilized across many sectors: as a nutritional additive that supports neural and visual development in infants, a key ingredient in infant formula, capsules and drink powders that enhance energy metabolism, endurance and muscle recovery for athletes, an osmotic regulator and antioxidant in energy beverages, a membrane stabilizer and calcium modulator that protects the cardiovascular system and is investigated for adjunctive treatment of congestive heart failure, diabetes and liver disorders, an excipient in eye drops for corneal dryness, a moisturizing and anti-inflammatory active in skin- and hair-care cosmetics, a feed additive for aquaculture and livestock to improve survival and immunity, and a tool in molecular biology research as a buffering agent that shields cells from oxidative stress.

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 4.85
    methanol 14.38
    isopropanol 1.46
    water 93.71
    ethyl acetate 0.67
    n-propanol 1.83
    acetone 11.54
    n-butanol 1.19
    acetonitrile 2.16
    DMF 50.11
    toluene 0.34
    isobutanol 0.97
    1,4-dioxane 1.89
    methyl acetate 1.11
    THF 6.42
    2-butanone 2.6
    n-pentanol 0.78
    sec-butanol 0.82
    n-hexane 0.08
    ethylene glycol 18.42
    NMP 71.42
    cyclohexane 0.16
    DMSO 78.49
    n-butyl acetate 1.31
    n-octanol 0.77
    chloroform 0.09
    n-propyl acetate 0.89
    acetic acid 25.74
    dichloromethane 0.19
    cyclohexanone 6.26
    propylene glycol 10.36
    isopropyl acetate 0.74
    DMAc 31.1
    2-ethoxyethanol 7.29
    isopentanol 0.99
    n-heptane 0.21
    ethyl formate 2.37
    1,2-dichloroethane 0.38
    n-hexanol 1.51
    2-methoxyethanol 19.95
    isobutyl acetate 0.56
    tetrachloromethane 0.08
    n-pentyl acetate 1.0
    transcutol 12.09
    n-heptanol 1.25
    ethylbenzene 0.18
    MIBK 1.96
    2-propoxyethanol 7.72
    tert-butanol 1.81
    MTBE 0.39
    2-butoxyethanol 4.88
    propionic acid 4.93
    o-xylene 0.58
    formic acid 63.99
    diethyl ether 0.41
    m-xylene 0.45
    p-xylene 0.31
    chlorobenzene 0.28
    dimethyl carbonate 1.42
    n-octane 0.08
    formamide 63.99
    cyclopentanone 11.05
    2-pentanone 2.63
    anisole 0.66
    cyclopentyl methyl ether 1.77
    gamma-butyrolactone 12.05
    1-methoxy-2-propanol 9.88
    pyridine 1.87
    3-pentanone 1.68
    furfural 17.57
    n-dodecane 0.05
    diethylene glycol 16.82
    diisopropyl ether 0.26
    tert-amyl alcohol 1.3
    acetylacetone 6.29
    n-hexadecane 0.06
    acetophenone 2.19
    methyl propionate 1.29
    isopentyl acetate 1.1
    trichloroethylene 0.48
    n-nonanol 0.78
    cyclohexanol 1.3
    benzyl alcohol 1.52
    2-ethylhexanol 0.82
    isooctanol 0.89
    dipropyl ether 0.89
    1,2-dichlorobenzene 0.33
    ethyl lactate 2.78
    propylene carbonate 4.41
    n-methylformamide 20.0
    2-pentanol 0.65
    n-pentane 0.1
    1-propoxy-2-propanol 4.96
    1-methoxy-2-propyl acetate 2.74
    2-(2-methoxypropoxy) propanol 6.43
    mesitylene 0.5
    ε-caprolactone 4.21
    p-cymene 0.49
    epichlorohydrin 3.07
    1,1,1-trichloroethane 0.15
    2-aminoethanol 15.28
    morpholine-4-carbaldehyde 32.82
    sulfolane 41.11
    2,2,4-trimethylpentane 0.06
    2-methyltetrahydrofuran 1.72
    n-hexyl acetate 1.16
    isooctane 0.05
    2-(2-butoxyethoxy)ethanol 7.27
    sec-butyl acetate 0.48
    tert-butyl acetate 1.43
    decalin 0.08
    glycerin 33.72
    diglyme 11.19
    acrylic acid 9.61
    isopropyl myristate 0.64
    n-butyric acid 3.7
    acetyl acetate 1.01
    di(2-ethylhexyl) phthalate 1.75
    ethyl propionate 0.7
    nitromethane 26.15
    1,2-diethoxyethane 1.2
    benzonitrile 1.08
    trioctyl phosphate 1.22
    1-bromopropane 0.13
    gamma-valerolactone 24.12
    n-decanol 0.64
    triethyl phosphate 1.17
    4-methyl-2-pentanol 0.64
    propionitrile 0.68
    vinylene carbonate 3.95
    1,1,2-trichlorotrifluoroethane 10.13
    DMS 1.43
    cumene 0.23
    2-octanol 0.61
    2-hexanone 1.36
    octyl acetate 0.95
    limonene 0.73
    1,2-dimethoxyethane 5.99
    ethyl orthosilicate 0.93
    tributyl phosphate 1.25
    diacetone alcohol 6.56
    N,N-dimethylaniline 1.15
    acrylonitrile 1.7
    aniline 1.19
    1,3-propanediol 9.09
    bromobenzene 0.15
    dibromomethane 0.14
    1,1,2,2-tetrachloroethane 0.41
    2-methyl-cyclohexyl acetate 1.73
    tetrabutyl urea 2.95
    diisobutyl methanol 0.65
    2-phenylethanol 2.05
    styrene 0.19
    dioctyl adipate 1.49
    dimethyl sulfate 6.06
    ethyl butyrate 1.29
    methyl lactate 6.44
    butyl lactate 2.92
    diethyl carbonate 0.8
    propanediol butyl ether 6.19
    triethyl orthoformate 1.11
    p-tert-butyltoluene 0.5
    methyl 4-tert-butylbenzoate 4.35
    morpholine 3.13
    tert-butylamine 0.72
    n-dodecanol 0.5
    dimethoxymethane 6.67
    ethylene carbonate 2.31
    cyrene 14.79
    2-ethoxyethyl acetate 1.73
    2-ethylhexyl acetate 0.84
    1,2,4-trichlorobenzene 0.47
    4-methylpyridine 1.81
    dibutyl ether 0.43
    2,6-dimethyl-4-heptanol 0.65
    DEF 4.65
    dimethyl isosorbide 10.4
    tetrachloroethylene 0.47
    eugenol 5.86
    triacetin 3.23
    span 80 5.82
    1,4-butanediol 3.75
    1,1-dichloroethane 0.12
    2-methyl-1-pentanol 0.64
    methyl formate 13.0
    2-methyl-1-butanol 0.87
    n-decane 0.08
    butyronitrile 0.74
    3,7-dimethyl-1-octanol 0.77
    1-chlorooctane 0.19
    1-chlorotetradecane 0.12
    n-nonane 0.08
    undecane 0.06
    tert-butylcyclohexane 0.07
    cyclooctane 0.1
    cyclopentanol 2.38
    tetrahydropyran 0.84
    tert-amyl methyl ether 0.51
    2,5,8-trioxanonane 10.52
    1-hexene 0.15
    2-isopropoxyethanol 3.17
    2,2,2-trifluoroethanol 11.7
    methyl butyrate 1.39

    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