1-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-3-yl)ethanone CAS 105224-20-2
| CAS No. | 105224-20-2 |
| Molecular Formula | C8H10N2O2 |
| Molecular Weight | 166.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H10N2O2, 1-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-3-yl)ethanone 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 166.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 1-(6,7-Dihydro-4H-pyrazolo[5,1-c][1,4]oxazin-3-yl)ethanone (CAS 105224-20-2), a certified reference material (molecular formula C8H10N2O2, MW 166.18 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H10N2O2 |
| Molecular Weight | 166.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Dihydro Standards
- 2-(4,5-Dihydro-1H-imidazol-2-yl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one (CAS 111988-05-7)
- (R)-6,7-dihydro-5H-pyrrolo[1,2-a]imidazol-7-yl acetate (CAS 1221187-79-6)
- (3,4-Dihydro-2H-pyrido[3,2-b][1,4]oxazin-6-yl)methanol (CAS 1256806-94-6)
- 4-Methyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carboxylic acid (CAS 1314986-72-5)
- 2-Methyl-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-5-carboxylic acid (CAS 1368179-03-6)
- Methyl 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-6-carboxylate (CAS 1369802-54-9)
- 6,8-Dihydro-5H-pyrano[3,4-d]pyrimidine-2,5-diamine (CAS 1391732-68-5)
- Methyl 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carboxylate (CAS 1454848-65-7)
Recommended Standards
- 5-[1-(hydroxyimino)ethyl]-4-methylpyrimidin-2-amine (CAS 1050886-14-0)
- 4-Hydroxy-N,N-dimethylnicotinamide (CAS 1055935-42-6)
- Methyl 3-(aminomethyl)picolinate (CAS 1050750-49-6)
- 2-Amino-N-hydroxy-2-phenylacetamide (CAS 105985-16-8)
- N-(5-Methylisoxazol-3-yl)-3-nitrobenzamide (CAS 160856-97-3)
- 3-(3,5-Dimethyl-1H-pyrazol-4-yl)-propylamine dihydrochloride (CAS 1429056-14-3)
- Methyl 2-ethyl-6-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate (CAS 2304634-30-6)
- 3-(6H-indolo[2,3-b]quinoxalin-6-yl)propanoic acid (CAS 332025-85-1)
- Ethyl 2-bromo-6-fluoro-3-(trifluoromethyl)benzoate (CAS 2271442-82-9)
- 4-(2-(2-Bromo-4-nitrophenoxy)acetamido)benzene-1-sulfonyl fluoride (CAS 25299-92-7)
- 1,1'-((2,5-Dibromo-1,4-phenylene)bis(methylene))bis(1H-imidazole) (CAS 2375720-18-4)
- Di-t-butyl(2-butenyl)phosphine (40% in xylene), 98% m-Crophos (CAS 1620882-90-7)
- N-(2,2-dimethylpropyl)-N-methylcarbamoyl chloride (CAS 1543028-41-6)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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