3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde CAS 443956-11-4
| CAS No. | 443956-11-4 |
| Molecular Formula | C8H6N2O3 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde.
3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (CAS 443956-11-4), molecular formula C8H6N2O3 and molecular weight 178.14 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6N2O3, 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.14 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), 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde 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 | C8H6N2O3 |
| Molecular Weight | 178.14 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Related Oxo Standards
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-4-carboxylic acid (CAS 1190310-95-2)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-7-carboxylic acid (CAS 1190313-18-8)
- 4-Oxo-4,5-dihydro-1H-pyrrolo[3,2-c]pyridine-3-carboxylic acid (CAS 1190314-55-6)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-5-carboxylic acid (CAS 1190317-48-6)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[3,2-b]pyridine-6-carboxylic acid (CAS 1190318-74-1)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-c]pyridine-7-carboxylic acid (CAS 1190318-92-3)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-c]pyridine-4-carboxylic acid (CAS 1190319-78-8)
- 5-Oxo-4,5-dihydro-1H-pyrrolo[3,2-b]pyridine-3-carboxylic acid (CAS 1190321-95-9)
Recommended Standards
- 3-Oxo-2,3-dihydro-1h-indazole-6-carboxylic acid (CAS 862274-40-6)
- 4-(2-Oxoacetyl)benzoic acid (CAS 20099-54-1)
- 3-Oxo-2,3-dihydro-1h-indazole-4-carboxylic acid (CAS 7384-17-0)
- 4,5-Dihydroxy-2H-chromen-2-one (CAS 30992-74-6)
- 2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3,4-dimethylbenzoic acid (CAS 1185302-78-6)
- 3'-(3-(Trifluoromethyl)phenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione (CAS 79962-59-7)
- N-(2,4-Dichlorobenzyl)-N-methylpiperidin-3-amine hydrochloride (CAS 1289385-89-2)
- 2-Bicyclo-(2,2,1)-hept-2-yl-ethylamine (CAS 72055-19-7)
- 2-methoxypyridine-3-sulfonamide (CAS 1566061-98-0)
- N-Allyl-1H-pyrrole-1-carboxamide (CAS 107962-30-1)
- tert-Butyl ((3R,5R)-5-(hydroxymethyl)pyrrolidin-3-yl)carbamate (CAS 1009335-43-6)
- Tert-butyl 4-((2-fluoro-4-nitrophenyl)(methyl)amino)piperidine-1-carboxylate (CAS 952285-82-4)
- 2-Bromo-1-(2,4-dimethoxyphenyl)propan-1-one (CAS 117844-88-9)
- Fas C- Terminal Tripeptide (CAS 189109-90-8)
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