(S)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol CAS 2238822-14-3
| CAS No. | 2238822-14-3 |
| Molecular Formula | C6H8N2O2 |
| Molecular Weight | 140.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (S)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol 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.
(S)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (CAS 2238822-14-3) is a high-purity analytical reference standard with the molecular formula C6H8N2O2 and a molecular weight of 140.14 g/mol.
The molecular framework of (S)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (C6H8N2O2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O2 |
| Molecular Weight | 140.14 g/mol |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
Related S Standards
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- 6,7-Dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ol (CAS 1557178-09-2)
- 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (CAS 1558277-46-5)
- (R)-6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-ol (CAS 2238820-75-0)
- 6,7-Dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-3-ol (CAS 2092568-27-7)
- 5,6-Dihydro-4H-pyrrolo[3,4-d]thiazol-4-one (CAS 1259060-76-8)
Recommended Standards
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- (S)-1-(Furan-2-yl)-2-hydroxypropan-1-one (CAS 287716-26-1)
- 1-(1-Methyl-1H-imidazol-5-yl)urea (CAS 349492-32-6)
- Hexadecanoic-9,9-d2 Acid (CAS 272442-14-5)
- 3,5,4′-Tribromosalicylanilide (CAS 87-10-5)
- Methyl 2-isothiocyanato-4,5-dimethoxybenzoate (CAS 113417-46-2)
- Levosimendan Impurity 4 (CAS 42075-29-6)
- Ethyl 3-(benzyloxy)-6-fluorobicyclo[3.1.0]hexane-6-carboxylate (CAS 1823316-44-4)
- 2-(2-Formyl-5-nitro-1H-imidazol-1-yl)ethyl acetate (CAS 4812-32-2)
- (E)-5-Methylhex-2-enamide (CAS 477533-80-5)
- 898749-38-7 (2-Chloro-4-fluorophenyl){3-[(2,5-dihydro-1H-pyrrol-1-yl)methyl]phenyl}methanone DTXSID80643499 (CAS 898749-38-7)
- 4-Bromo-2-((2-fluorobenzyl)oxy)pyridine (CAS 2091080-15-6)
- Peptide Impurity 26 (CAS 1350456-66-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com