3-Acetyloxazol-2(3H)-one CAS 60759-49-1
| CAS No. | 60759-49-1 |
| Molecular Formula | C5H5NO3 |
| Molecular Weight | 127.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3-Acetyloxazol-2(3H)-one (CAS 60759-49-1), molecular formula C5H5NO3 and molecular weight 127.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H5NO3, 3-Acetyloxazol-2(3H)-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 127.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 3-Acetyloxazol-2(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H5NO3 |
| Molecular Weight | 127.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Nitromethylimidazole (CAS 393516-79-5)
- 3-Amino-1H-pyrazole-5-carboxylic acid (CAS 887408-52-8)
- 2-Methyl-5-nitroimidazole (CAS 88054-22-2)
- 3-Hydrazino-1,2,4-triazin-5(2H)-one (CAS 21383-22-2)
- Benzyl (2R,5S)-5-amino-2-ethylpiperidine-1-carboxylate (CAS 2382381-33-9)
- N-benzyl-4-(3-(trifluoromethyl)benzoyl)-1H-pyrrole-2-carboxamide (CAS 478078-23-8)
- N-((2R,3R,4S,5R)-2-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl)-2,2,2-trifluoroacetamide (CAS 51989-21-0)
- Methyl 3-cycloheptylpropiolate (CAS 1339145-58-2)
- 3-(4-Phenylbenzoyl)pyridine (CAS 123734-38-3)
- 8-Chloro-2-(m-tolyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine (CAS 889939-52-0)
- Prodiamine (CAS 29091-21-2)
- 3,4-Bis(4-methoxyphenyl)-5-methylisoxazole (CAS 78967-05-2)
- 3,4-dimethylpyrrolidine hydrochloride (CAS 742100-61-4)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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