Cas no 24474-93-9 (2-methyl-4H-oxazol-5-one)

2-Methyl-4H-oxazol-5-one is a heterocyclic organic compound featuring a five-membered oxazole ring with a methyl substituent at the 2-position. This versatile intermediate is widely utilized in organic synthesis, particularly in the preparation of pharmaceuticals, agrochemicals, and specialty chemicals. Its reactive oxazolone ring enables diverse transformations, including nucleophilic additions and cycloadditions, making it valuable for constructing complex molecular architectures. The compound exhibits good stability under standard conditions, facilitating handling and storage. Its structural motif is found in various bioactive molecules, underscoring its importance in medicinal chemistry research. The methyl group enhances lipophilicity, potentially improving bioavailability in derived compounds. This scaffold is particularly useful for synthesizing amino acid derivatives and peptidomimetics.
2-methyl-4H-oxazol-5-one structure
2-methyl-4H-oxazol-5-one structure
Product Name:2-methyl-4H-oxazol-5-one
CAS No:24474-93-9
MF:C4H5NO2
MW:99.0880010128021
CID:258377
PubChem ID:193602
Update Time:2025-07-02

2-methyl-4H-oxazol-5-one Chemical and Physical Properties

Names and Identifiers

    • 5(4H)-Oxazolone,2-methyl-
    • 2-methyl-4H-1,3-oxazol-5-one
    • 2-methyl-5(4H)-Oxazolone
    • 2-methyl-4H-oxazol-5-one
    • 2-Methyl-5-oxo-4,5-dihydro-1,3-oxazole
    • 2-methyloxazol-5(4H)-one
    • AC1L4WMT
    • AC1Q6H40
    • CTK4F3766
    • NSC339473
    • SureCN1751894
    • 5(4H)-Oxazolone, 2-methyl-
    • FT-0766991
    • 2-methyl-1,3-oxazol-5(4H)-one
    • 2-methyl-4,5-dihydro-1,3-oxazol-5-one
    • A18518
    • WKIXQUMETCNZKK-UHFFFAOYSA-N
    • 24474-93-9
    • DTXSID60179241
    • 2-methyl-4H-1, 3-oxazol-5-one
    • NSC 339473
    • NSC-339473
    • Inchi： 1S/C4H5NO2/c1-3-5-2-4(6)7-3/h2H2,1H3
    • InChI Key： WKIXQUMETCNZKK-UHFFFAOYSA-N
    • SMILES： O1C(CN=C1C)=O

Computed Properties

  • Exact Mass: 99.03205
  • Monoisotopic Mass: 99.032
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 3
  • Heavy Atom Count: 7
  • Rotatable Bond Count: 0
  • Complexity: 128
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • XLogP3: -0.2
  • Topological Polar Surface Area: 38.7?2

Experimental Properties

  • Density: 1.31
  • Boiling Point: 119.1°C at 760 mmHg
  • Flash Point: 39.3°C
  • Refractive Index: 1.535
  • PSA: 38.66

2-methyl-4H-oxazol-5-one Pricemore >>

Related Categories No. Product Name Cas No. Purity Specification Price update time Inquiry
Ambeed
A272993-1g
2-Methyloxazol-5(4H)-one
 24474-93-9 98%
1g
 $1315.0 2024-07-28
Chemenu
CM329121-1g
2-methyl-4H-1,3-oxazol-5-one
 24474-93-9 95%+
1g
 $1578 2024-07-28
Enamine
EN300-91303-0.05g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
0.05g
 $334.0 2023-02-11
Enamine
EN300-91303-0.1g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
0.1g
 $499.0 2023-02-11
Enamine
EN300-91303-0.25g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
0.25g
 $714.0 2023-02-11
Enamine
EN300-91303-0.5g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
0.5g
 $1125.0 2023-02-11
Enamine
EN300-91303-1.0g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
1.0g
 $1442.0 2023-02-11
Enamine
EN300-91303-2.5g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
2.5g
 $2828.0 2023-02-11
Enamine
EN300-91303-5.0g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
5.0g
 $4184.0 2023-02-11
Enamine
EN300-91303-10.0g
2-methyl-4,5-dihydro-1,3-oxazol-5-one
 24474-93-9 95%
10.0g
 $6205.0 2023-02-11

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