4-(3-Oxo-2-phenyl-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)butanoic acid CAS 903149-54-2
| CAS No. | 903149-54-2 |
| Molecular Formula | C17H16N2O4 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(3-Oxo-2-phenyl-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)butanoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(3-Oxo-2-phenyl-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)butanoic acid (CAS 903149-54-2), molecular formula C17H16N2O4 and molecular weight 312.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 4-(3-Oxo-2-phenyl-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)butanoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 312.32 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.
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.
CATO manufactures 4-(3-Oxo-2-phenyl-2,3-dihydro-4H-pyrido[3,2-b][1,4]oxazin-4-yl)butanoic acid 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 | C17H16N2O4 |
| Molecular Weight | 312.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 4-(3-((Tert-butoxycarbonyl)amino)propanamido)-1-methyl-1H-imidazole-2-carboxylic acid (CAS 344779-17-5)
- 4,4'-(1,3-Phenylenebis(oxy))dibenzonitrile (CAS 31206-12-9)
- 4-(2-Amino-7-oxo-4-phenyl-5H-pyrrolo[3,4-d]pyrimidin-6(7H)-yl)butanoic acid (CAS 76628-78-9)
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Why CATO?
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