3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine CAS 1429893-29-7
| CAS No. | 1429893-29-7 |
| Molecular Formula | C13H12BrFN2O |
| Molecular Weight | 311.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 311.15 g/mol gives 3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (CAS 1429893-29-7), molecular formula C13H12BrFN2O and molecular weight 311.15 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine (C13H12BrFN2O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 3-Bromo-2-(4-fluorophenyl)-7-methyl-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H12BrFN2O |
| Molecular Weight | 311.15 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
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- N1-(3-bromo-5-(trifluoromethyl)phenyl)-N2,N2-dimethylethane-1,2-diamine (CAS 1480680-65-6)
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- 2-((4-Bromo-1h-pyrazol-1-yl)methyl)thieno[3,2-d]pyrimidin-4(3h)-one (CAS 1179746-17-8)
- Ethyl 4-bromo-1,3-dihydroxy-2-naphthoate (CAS 100375-06-2)
- 2-(5-Bromo-2,3-dioxo-2,3-dihydro-1h-indol-1-yl)-n,n-dimethylacetamide (CAS 1021023-54-0)
Recommended Standards
- (3-Bromophenyl)(3-fluoro-4-methoxyphenyl)methanol (CAS 1285349-75-8)
- (2R,3S)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 1429893-31-1)
- (4-Bromophenyl)(5-fluoro-2-methoxyphenyl)methanol (CAS 1285192-44-0)
- (2R,3R)-7-bromo-6-(4-fluorophenyl)-2,3-dimethyl-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 1429893-64-0)
- 4-Ethylbenzaldehyde (CAS 4748-78-1)
- 5-methyl-4,5-dihydro-1,3-thiazol-2-amine hydrochloride (CAS 10416-82-7)
- 4-Bromoflavone (CAS 20525-20-6)
- 2-{[2-(thiophen-2-yl)ethyl]amino}acetic acid hydrochloride (CAS 1258640-11-7)
- 4-Amino-5-(hydroxymethyl)-1H-pyrazole-3-carboxamide (CAS 22283-31-4)
- 8-Ethyl-2-hydroxyquinoline-3-carbaldehyde (CAS 436088-08-3)
- 1-(Phenethylamino)propan-2-ol (CAS 21762-38-9)
- (R)-1-(2-bromo-6-fluorophenyl)-2-methoxyethan-1-amine (CAS 1270155-91-3)
- 2'-Bromospiro[fluorene-9,9'-xanthene] (CAS 1477458-14-2)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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