2-Thiophenemethanol

Overview IFRA Request a quote

  • Identifiers

    CAS number
    636-72-6

    Molecular formula
    C5H6OS

    SMILES
    C1=CSC(=C1)CO

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Sulfurous 62.7%
    Coffee 60.78%
    Roasted 56.55%
    Burnt 54.5%
    Caramellic 46.78%
    Meaty 46.56%
    Alliaceous 44.48%
    Nutty 38.98%
    Savory 38.35%
    Fermented 37.07%

     

    Flavor
    Coffee 56.19%
    Sweet 48.3%
    Bitter 45.36%
    Caramel 39.02%
    Roasted 38.17%
    Sulfurous 37.72%
    Musty 37.27%
    Sulfur 37.05%
    Burnt 36.85%
    Fatty 36.47%

     

    Odor impact est.
    High

  • Properties

    XLogP3-AA
    0.9

    pKa est.
    6.44 (neutral)

    Molecular weight
    114.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderate

    Boiling point

    • 206.00 to 207.00 °C. @ 760.00 mm Hg

    Flash point

    • 76.83 ˚C est.

    Solubility expt.

    • Soluble in water
    • Soluble (in ethanol)

  • Synonyms

    • 2-Thiophenemethanol
    • 636-72-6
    • thiophen-2-ylmethanol
    • 2-Thienylmethanol
    • Thiophene-2-methanol
    • 2-(Hydroxymethyl)thiophene
    • Thenyl alcohol
    • 2-Hydroxymethylthiophene
    • 2-Thenyl alcohol
    • (thiophen-2-yl)methanol
    • 2-Thienyl carbinol
    • 2-Thiophenecarbinol
    • MFCD00005454
    • UNII-279633QQ3D
    • 2-THIENYLCARBINOL
    • EINECS 211-264-3
    • NSC 89695
    • NSC-89695
    • 279633QQ3D
    • 2-THIENYLMETHYL ALCOHOL
    • Thiophene, 2-(hydroxymethyl)-
    • FEMA NO. 4642
    • DTXSID50212979
    • 2-?Thiophenemethanol
    • Thiophen-2-Yl-Methanol
    • thienylmethanol
    • thiophenemethanol
    • 2Thenyl alcohol
    • 2thiophenemethanol
    • thiophene methanol
    • 2Thienyl carbinol
    • 2thiophene methanol
    • 2-(Hydroxymethyl)thiophene; 2-Thenyl Alcohol; 2-Thienylcarbinol; 2-Thienylmethanol; 2-Thienylmethyl Alcohol; NSC 89695
    • NSC89695
    • thiophen-2-methanol
    • tiophene-2-methanol
    • 2-thiophene carbinol
    • 2-thiophene methanol
    • 2-Thienylmethanol #
    • 2-hydroxymethyl thiophene
    • 2-hydroxymethyl-thiophene
    • 2(Hydroxymethyl)thiophene
    • 2-hydroxy methyl thiophene
    • 2-Thiophenemethanol, 98%
    • 2-(Hydroxymethyl)-Thiophene
    • SCHEMBL93009
    • DTXCID30135470
    • AKOS000120452
    • FT00670
    • PB10001
    • PS-5570
    • SDCCGMLS-0065972.P001
    • HY-34751
    • SY036796
    • DB-038171
    • CS-0022380
    • NS00022599
    • T1112
    • EN300-20529
    • P10010
    • Q27254185
    • F0001-1726
    • Z104478586
    • 2-Thienylmethanol; Thiophene-2-methanol; 2-Hydroxymethylthiophene

  • Applications

    2-Thiophenemethanol (CAS 636-72-6) is primarily used as a chemical intermediate and functional building block in organic synthesis. In perfumery and flavors, it serves as an odorant precursor to furnish thiophene-containing fragrance notes. It may be used in cosmetics and personal care formulations as a fragrance ingredient or precursor, subject to formulation constraints. As an alcohol with a thiophene ring, it provides a versatile starting point for derivatives in pharmaceutical and agrochemical research, enabling thiophene-containing scaffolds. In materials science, it can be used as a precursor to thiophene-based monomers or functionalized polymers for coatings, inks, and conductive polymer applications. Its exact applications depend on local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 193.82
    methanol 210.6
    isopropanol 119.3
    water 11.13
    ethyl acetate 89.07
    n-propanol 147.59
    acetone 81.77
    n-butanol 140.01
    acetonitrile 58.87
    DMF 227.76
    toluene 23.18
    isobutanol 86.11
    1,4-dioxane 203.22
    methyl acetate 90.58
    THF 269.73
    2-butanone 82.76
    n-pentanol 104.02
    sec-butanol 96.91
    n-hexane 2.45
    ethylene glycol 70.78
    NMP 165.89
    cyclohexane 4.59
    DMSO 212.4
    n-butyl acetate 86.95
    n-octanol 56.79
    chloroform 107.92
    n-propyl acetate 75.57
    acetic acid 238.69
    dichloromethane 65.01
    cyclohexanone 121.98
    propylene glycol 66.46
    isopropyl acetate 56.22
    DMAc 152.99
    2-ethoxyethanol 204.75
    isopentanol 95.91
    n-heptane 10.14
    ethyl formate 75.66
    1,2-dichloroethane 48.43
    n-hexanol 111.67
    2-methoxyethanol 300.74
    isobutyl acetate 48.08
    tetrachloromethane 25.2
    n-pentyl acetate 60.32
    transcutol 516.22
    n-heptanol 68.12
    ethylbenzene 11.31
    MIBK 69.16
    2-propoxyethanol 205.61
    tert-butanol 125.06
    MTBE 64.71
    2-butoxyethanol 141.85
    propionic acid 126.47
    o-xylene 20.19
    formic acid 186.15
    diethyl ether 76.59
    m-xylene 24.0
    p-xylene 15.23
    chlorobenzene 38.06
    dimethyl carbonate 38.19
    n-octane 3.91
    formamide 234.47
    cyclopentanone 145.95
    2-pentanone 87.15
    anisole 58.99
    cyclopentyl methyl ether 102.88
    gamma-butyrolactone 178.79
    1-methoxy-2-propanol 210.65
    pyridine 115.23
    3-pentanone 54.95
    furfural 194.03
    n-dodecane 3.48
    diethylene glycol 175.85
    diisopropyl ether 26.0
    tert-amyl alcohol 100.94
    acetylacetone 89.12
    n-hexadecane 3.85
    acetophenone 61.19
    methyl propionate 71.52
    isopentyl acetate 63.89
    trichloroethylene 132.2
    n-nonanol 52.01
    cyclohexanol 79.95
    benzyl alcohol 67.83
    2-ethylhexanol 59.46
    isooctanol 55.13
    dipropyl ether 68.85
    1,2-dichlorobenzene 39.64
    ethyl lactate 54.78
    propylene carbonate 95.63
    n-methylformamide 152.17
    2-pentanol 87.81
    n-pentane 4.64
    1-propoxy-2-propanol 158.26
    1-methoxy-2-propyl acetate 99.24
    2-(2-methoxypropoxy) propanol 124.79
    mesitylene 17.16
    ε-caprolactone 124.87
    p-cymene 19.92
    epichlorohydrin 161.02
    1,1,1-trichloroethane 54.53
    2-aminoethanol 140.14
    morpholine-4-carbaldehyde 229.2
    sulfolane 178.51
    2,2,4-trimethylpentane 4.87
    2-methyltetrahydrofuran 146.68
    n-hexyl acetate 69.2
    isooctane 5.39
    2-(2-butoxyethoxy)ethanol 181.25
    sec-butyl acetate 47.31
    tert-butyl acetate 71.88
    decalin 3.94
    glycerin 133.23
    diglyme 281.59
    acrylic acid 124.28
    isopropyl myristate 32.89
    n-butyric acid 157.04
    acetyl acetate 52.0
    di(2-ethylhexyl) phthalate 35.83
    ethyl propionate 51.06
    nitromethane 228.23
    1,2-diethoxyethane 133.77
    benzonitrile 58.56
    trioctyl phosphate 28.44
    1-bromopropane 25.97
    gamma-valerolactone 233.94
    n-decanol 38.64
    triethyl phosphate 34.18
    4-methyl-2-pentanol 57.06
    propionitrile 56.01
    vinylene carbonate 99.0
    1,1,2-trichlorotrifluoroethane 172.09
    DMS 43.58
    cumene 12.98
    2-octanol 41.5
    2-hexanone 69.91
    octyl acetate 41.74
    limonene 33.08
    1,2-dimethoxyethane 199.71
    ethyl orthosilicate 36.55
    tributyl phosphate 31.5
    diacetone alcohol 123.2
    N,N-dimethylaniline 45.5
    acrylonitrile 76.45
    aniline 68.8
    1,3-propanediol 184.5
    bromobenzene 27.44
    dibromomethane 39.69
    1,1,2,2-tetrachloroethane 98.91
    2-methyl-cyclohexyl acetate 55.64
    tetrabutyl urea 43.3
    diisobutyl methanol 40.27
    2-phenylethanol 74.8
    styrene 14.53
    dioctyl adipate 49.46
    dimethyl sulfate 65.9
    ethyl butyrate 71.38
    methyl lactate 63.67
    butyl lactate 59.64
    diethyl carbonate 39.92
    propanediol butyl ether 110.55
    triethyl orthoformate 56.13
    p-tert-butyltoluene 21.29
    methyl 4-tert-butylbenzoate 76.28
    morpholine 246.37
    tert-butylamine 68.61
    n-dodecanol 29.51
    dimethoxymethane 139.04
    ethylene carbonate 76.84
    cyrene 111.57
    2-ethoxyethyl acetate 88.05
    2-ethylhexyl acetate 51.12
    1,2,4-trichlorobenzene 50.41
    4-methylpyridine 89.16
    dibutyl ether 47.99
    2,6-dimethyl-4-heptanol 40.27
    DEF 106.9
    dimethyl isosorbide 173.52
    tetrachloroethylene 78.64
    eugenol 96.17
    triacetin 78.15
    span 80 105.18
    1,4-butanediol 79.2
    1,1-dichloroethane 47.76
    2-methyl-1-pentanol 72.06
    methyl formate 87.42
    2-methyl-1-butanol 88.78
    n-decane 5.69
    butyronitrile 68.92
    3,7-dimethyl-1-octanol 48.74
    1-chlorooctane 23.45
    1-chlorotetradecane 10.29
    n-nonane 5.15
    undecane 4.28
    tert-butylcyclohexane 5.15
    cyclooctane 2.58
    cyclopentanol 98.84
    tetrahydropyran 135.26
    tert-amyl methyl ether 58.64
    2,5,8-trioxanonane 223.96
    1-hexene 12.62
    2-isopropoxyethanol 137.19
    2,2,2-trifluoroethanol 107.46
    methyl butyrate 70.55

    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