• Identifiers

    CAS number
    24295-03-2

    Molecular formula
    C5H5NOS

    SMILES
    CC(=O)C1=NC=CS1

    Safety labels

    Irritant
    Irritant

    Retention indicies (RI)

    • DB5: 1014.0
    • Carbowax: 1639.0
  • Odor profile

    nutty 83.85%
    roasted 64.94%
    popcorn 60.1%
    meaty 45.78%
    coffee 40.96%
    hazelnut 39.92%
    burnt 39.32%
    sulfurous 34.56%
    musty 32.3%
    caramellic 31.29%

    Scent© AI

  • Properties

    XLogP3-AA
    1.0 Well soluble in MMB, TEC, IAA

    Molecular weight
    127.17 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Moderately fast

    Melting point expt.

    • 64.5 - 65.5 °C

    Boiling point

    • 89.00 to 91.00 °C. @ 12.00 mm Hg

    Solubility expt.

    • Insoluble in water; Soluble in fats, oils, most organic solvents
    • Miscible at room temperature (in ethanol)

  • Synonyms

    • 2-Acetylthiazole
    • 24295-03-2
    • 1-(1,3-Thiazol-2-yl)ethan-1-one
    • 1-(1,3-Thiazol-2-yl)ethanone
    • Ethanone, 1-(2-thiazolyl)-
    • 1-thiazol-2-yl-ethanone
    • 2-ACETYL THIAZOLE
    • Methyl 2-thiazolyl ketone
    • 1-(Thiazol-2-yl)ethan-1-one
    • Ketone, methyl 2-thiazolyl
    • Thiazole, 2-acetyl
    • 2-acetylthiazol
    • 1-(2-Thiazolyl)ethanone
    • 2-Thiazolyl methyl ketone
    • MFCD00005324
    • FEMA No. 3328
    • Methyl 5-thiazolyl ketone
    • 1-(2-thiazolyl)-ethanone
    • 1-(thiazol-2-yl)ethanone
    • UNII-16IGS5268I
    • DTXSID0030162
    • 16IGS5268I
    • EINECS 246-134-5
    • 3,3'-DICARBOXYDIPHENYLMETHANE
    • 2-ACETYLTHIAZOLE [FHFI]
    • DTXCID8010162
    • 1-(2-Thiazolyl)ethanone, 9CI
    • FEMA 3328
    • Methyl 2-thiazolyl ketone, 8CI
    • 2-ACETYL THIAZOLE [FCC]
    • CAS-24295-03-2
    • 2-acetyl-1,3-thiazole
    • acetylthiazole
    • 2-acetyl
    • 2-acetyl-
    • 2-Acetylthiazole, 99%
    • MLS002415692
    • SCHEMBL247631
    • CHEMBL1589555
    • 2-Acetylthiazole, >=99%, FG
    • CHEBI:173474
    • HMS3039C05
    • BCP27129
    • HY-Y0045
    • STR03999
    • Tox21_202054
    • Tox21_303515
    • AKOS005259005
    • AC-3209
    • CS-W008970
    • FA15955
    • PB42359
    • PS-5288
    • NCGC00091718-01
    • NCGC00091718-02
    • NCGC00257353-01
    • NCGC00259603-01
    • SMR001370882
    • SY004958
    • DB-020350
    • A1265
    • NS00012995
    • EN300-67228
    • F11223
    • T80017
    • Q27251815
    • F0001-0826
    • Z1069877574
1 of 4
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
Name CAS Botanical Proportion
Colocasia esculenta (Taro) Colocasia esculenta (L.) Schott, fam. Araceae 0.3%
Rocket leaf 2 headspace Eruca sativa L., fam. Brassicaceae 1.3%