7-Hydroxy-8-nitro-2H-oxazolo[3,2-a]pyridin-5(3H)-one CAS 1398504-30-7
| CAS No. | 1398504-30-7 |
| Molecular Formula | C7H6N2O5 |
| Molecular Weight | 198.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 7-Hydroxy-8-nitro-2H-oxazolo[3,2-a]pyridin-5(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 198.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
7-Hydroxy-8-nitro-2H-oxazolo[3,2-a]pyridin-5(3H)-one (CAS 1398504-30-7), molecular formula C7H6N2O5 and molecular weight 198.13 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Hydroxy-8-nitro-2H-oxazolo[3,2-a]pyridin-5(3H)-one 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.
Physical & Chemical Properties
| Molecular Formula | C7H6N2O5 |
| Molecular Weight | 198.13 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, water |
| 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.) | 1991 |
| Nitrogen Atoms | 2 |
Related Hydroxy Standards
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- Methyl 2-hydroxy-5-nitronicotinate (CAS 153888-40-5)
- Methyl 3-hydroxy-4-nitropicolinate (CAS 1625618-01-0)
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- Methyl 5-hydroxy-6-nitropicolinate (CAS 1803831-69-7)
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Recommended Standards
- 8,8-Difluoro-5,6,7,8-Tetrahydro-1,6-Naphthyridine-5,7-Dione (CAS 1393726-72-1)
- 4-Methoxy-5-nitropicolinic acid (CAS 1416801-26-7)
- 2-(2,6-Difluoro-3-nitrophenyl)acetonitrile (CAS 1369761-62-5)
- 4-Acetyl-5-nitro-1h-pyrrole-2-carboxylic acid (CAS 1421601-81-1)
- 2-((4-Allyl-5-(1-(p-tolylamino)ethyl)-4H-1,2,4-triazol-3-yl)thio)acetohydrazide (CAS 1071296-39-3)
- 7-Hexyl-3-methyl-8-(3-methylpiperidin-1-yl)-3,7-dihydro-1H-purine-2,6-dione (CAS 577791-66-3)
- N-(Pyrrolidin-3-yl)pyridin-2-amine hydrochloride (CAS 1420995-30-7)
- 2-Carbamoyl-3-hydroxybenzoic acid (CAS 1243456-88-3)
- 2-Amino-2,2-diphenylacetonitrile (CAS 52460-99-8)
- 5-acetylpyridine-2-carbonitrile (CAS 249583-84-4)
- Carbocisteine Impurity 55 (CAS CATO-C4X-201055)
- Ethyl 3-oxo-3-(piperidin-2-yl)propanoate (CAS 70883-14-6)
- 3-Amino-3-(2,5-dimethylfuran-3-yl)propan-1-ol (CAS 1270471-94-7)
- Tau Peptide (306-336) (Repeat 3 Domain) trifluoroacetate salt (CAS 330456-26-3)
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