11-(3-Amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid CAS 521-58-4
| CAS No. | 521-58-4 |
| Molecular Formula | C20H13N3O8 |
| Molecular Weight | 423.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
11-(3-Amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid (CAS 521-58-4) is a high-purity analytical reference standard with the molecular formula C20H13N3O8 and a molecular weight of 423.33 g/mol.
Based on its molecular formula C20H13N3O8, 11-(3-Amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 423.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 11-(3-Amino-3-carboxypropanoyl)-1-hydroxy-5-oxo-5H-pyrido[3,2-a]phenoxazine-3-carboxylic acid 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 | C20H13N3O8 |
| Molecular Weight | 423.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Amino Standards
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Recommended Standards
- (2E)-3-[6-(4-Bromophenyl)imidazo[2,1-b][1,3]thiazol-5-yl]-1-(4-methylphenyl)prop-2-en-1-one (CAS 691883-99-5)
- 2-(4-Chlorophenoxy)-N-((1-(2-(4-chlorophenoxy)ethyl)pyrrolidin-3-yl)methyl)acetamide (CAS 2169773-99-1)
- N-[(Z)-2-[4-(4-Fluorophenyl)-5-(trifluoromethyl)-4H-1,2,4-triazol-3-yl]-2-nitroethenyl]-3-methoxyaniline (CAS 400079-90-5)
- 2-{4-[(4-bromophenyl)methoxy]phenyl}-4-(thiophen-2-yl)pyrimidine (CAS 477862-26-3)
- 5-Methyl-2-(piperazin-1-yl)-[1,2,4]triazolo[1,5-a]pyrimidin-7(4H)-one (CAS 1708080-00-5)
- Potassium trifluoro((trimethylsilyl)ethynyl)borate (CAS 485339-09-1)
- 2-Bromo-3-(bromomethyl)-4-(difluoromethyl)-5-methylpyridine (CAS 1805354-43-1)
- N-(2-Methylnaphthalen-1-yl)furan-2-carboxamide (CAS 86314-92-3)
- 2-Chloro-2-Fluoro-1-Phenyl-1-Propanone (CAS 63017-20-9)
- CAS 26001-58-1 (CAS 26001-58-1)
- 2-Hydroxy-5-(2-mercapto-4,4-dimethylpyrimidin-1(4H)-yl)benzoic acid (CAS 1142213-24-8)
- N-{bicyclo[1.1.1]pentan-1-yl}aminosulfonamide (CAS 2169474-91-1)
- (R)-Benzyl 3-((S)-2-amino-N-ethyl-3-methylbutanamido)pyrrolidine-1-carboxylate (CAS 1401664-69-4)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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