5-Hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-one CAS 177210-33-2
| CAS No. | 177210-33-2 |
| Molecular Formula | C8H7NO3 |
| Molecular Weight | 165.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 5-Hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-one (C8H7NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 165.15 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 5-Hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 177210-33-2), a certified reference material (molecular formula C8H7NO3, MW 165.15 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.
CATO manufactures 5-Hydroxy-2H-benzo[b][1,4]oxazin-3(4H)-one 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 | C8H7NO3 |
| Molecular Weight | 165.15 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 4-Hydroxy-6-methyl-1,2-dihydro-pyrazolo[3,4-b]pyridin-3-one (CAS 116081-20-0)
- 6-Hydroxy-4-methylbenzo[d]oxazol-2(3H)-one (CAS 1231749-32-8)
- 4-hydroxy-1-methyl-1,2-dihydro-3H-pyrazolo[3,4-b]pyridin-3-one (CAS 1305712-64-4)
- 8-Hydroxy-3,4-dihydro-2H-1,3-benzoxazin-2-one (CAS 1779842-32-8)
- 7-Hydroxy-3,4-dihydro-2H-1,3-benzoxazin-2-one (CAS 1783742-44-8)
- 4-Hydroxy-2-methoxybenzo[d]oxazole (CAS 1804412-50-7)
- 2-Hydroxy-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 23520-34-5)
- 3-Hydroxy-5-methylpyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 2795141-07-8)
Recommended Standards
- 2-Oxo-3-(pyridin-2-yl)propanoic acid (CAS 175733-76-3)
- 4-(3-Methylisoxazol-5-yl)furan-2(5H)-one (CAS 175687-55-5)
- 3-(Hydroxymethyl)benzo[d]oxazol-2(3H)-one (CAS 17832-99-4)
- 4-Methoxy-3-methylisoxazolo[5,4-d]pyrimidine (CAS 175348-25-1)
- N-Acetyl Mescaline (CAS 4593-89-9)
- (5-(2-Methoxyethyl)-1,3,4-oxadiazol-2-yl)methanamine (CAS 1225227-30-4)
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- N,N-Diethyl-1-propanamine (CAS 4458-31-5)
- Furosemide Impurity 17 (CAS CATO-C4X-140217)
- N-methyl-N-(2-methylbutyl)pyrrolidin-3-amine (CAS 1248662-12-5)
- Tert-butyl (S)-4-(hydroxymethyl)azepane-1-carboxylate (CAS 2165779-06-4)
- 1-Acetyl-3-ethylimidazolidin-2-one (CAS 297143-82-9)
- 2,2,2-Trifluoro-N,N-dimethylacetamide (CAS 1547-87-1)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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