6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-amine Hydrochloride CAS 1779133-54-8
| CAS No. | 1779133-54-8 |
| Molecular Formula | C6H9N3O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-amine Hydrochloride 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.
6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-amine Hydrochloride (CAS 1779133-54-8), molecular formula C6H9N3OHCl and molecular weight 175.62 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-2-amine Hydrochloride is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 175.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C6H9N3O HCl |
| Molecular Weight | 175.62 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dihydro Standards
- 3-(3,6-Dihydro-2h-pyran-4-yl)benzoic acid (CAS 1000016-95-4)
- 1,7-Dihydro-dipyrrolo[2,3-b:3',2'-e]pyridine (CAS 1000342-79-9)
- Methyl 9,10-Dihydro-9-oxoacridine-4-carboxylate (CAS 100039-03-0)
- 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)propan-1-ol (CAS 1000540-71-5)
- 2,5-Dihydro-1-(2-nitrophenyl)-5-oxo-1H-1,2,4-triazole-3-carboxylic acid dimethylamide (CAS 1000574-24-2)
- 5-(1,2-Dihydro-[1,1':4',1''-terphenyl]-2-yl)-3H-1,2,4-triazol-3-one (CAS 1000575-71-2)
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- 2,5-Dihydro-5-oxo-1-phenyl-1H-1,2,4-triazole-3-carboxylic acid (2-chlorophenyl)amide (CAS 1000576-93-1)
Recommended Standards
- 3-Ethyl-1-methyl-1H-imidazol-3-ium ethyl sulfate (CAS 342573-75-5)
- (4-Methoxy-3-(trifluoromethoxy)phenyl)methanamine (CAS 1261865-55-7)
- S-Deoxo-3,17β-bis-(O-tetrahydro-2H-pyran-2-yl)-6-oxo-fulvestrant (CAS 862700-70-7)
- Cyclohexyl 2-(piperidinomethyl)phenyl ketone (CAS 898773-89-2)
- (2,3-Difluorophenyl)(piperidin-1-yl)methanone (CAS 351038-82-9)
- 1, 3, 5(10)-ESTRATRIEN-3, 15α, 17β-TRIOL (CAS 570-30-9)
- Finerenone Impurity 139 (CAS CATO-C4X-2880139)
- 3-[4-(3-chlorophenyl)piperazin-1-yl]propanoic acid dihydrochloride (CAS 1185294-04-5)
- 2-oxo-1,2,5,6,7,8-Hexahydro-1,6-naphthyridine-3-carboxylic acid hydrochloride (CAS 933722-83-9)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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