3,4-Dihydro-2H-benzo[b][1,4]oxazine-5-carboxylic acid CAS 123296-71-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 123296-71-9 |
| Molecular Formula | C9H9NO3 |
| Molecular Weight | 179.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dihydro-2H-benzo[b][1,4]oxazine-5-carboxylic acid (CAS 123296-71-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C9H9NO3. Molecular weight: 179.17 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C9H9NO3 |
| Molecular Weight | 179.17 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.) | 1992 |
| Nitrogen Atoms | 1 |
Related Dihydro Standards
- 3,4-Dihydro-2H-benzo[1,4]oxazine-8-carboxylic acid (CAS 1007875-95-7)
- 7,8-Dihydro-5H-pyrano[4,3-b]pyridine-3-carboxylic acid (CAS 1196155-91-5)
- 1-(2,3-Dihydro-[1,4]dioxino[2,3-b]pyridin-7-yl)ethan-1-one (CAS 1254044-15-9)
- 3,4-Dihydro-2H-benzo[b][1,4]oxazine-3-carboxylic acid (CAS 1260643-24-0)
- 3,4-Dihydro-2H-pyrano[3,2-b]pyridine-8-carboxylic acid (CAS 1364917-22-5)
- 3,4-Dihydro-2H-pyrano[3,2-b]pyridine-3-carboxylic acid (CAS 1516559-81-1)
- 3,4-Dihydro-2H-pyrano[2,3-c]pyridine-3-carboxylic acid (CAS 1517753-09-1)
- 2,3-Dihydro-1,4-benzodioxine-6-carboxamide (CAS 299169-62-3)
Recommended Standards
- 7-Hydroxy-5-methyl-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1231750-12-1)
- 1-(2,6-Difluorophenyl)cyclopropanecarbonitrile (CAS 124276-65-9)
- 2-(3,5-Difluorophenyl)pyrrole (CAS 1229035-74-8)
- 1-Bromo-4-fluoro-2-nitro-5-(trifluoromethoxy)benzene (CAS 1807156-10-0)
- N-(2-Methoxyethyl)-N-methyl-2-propyn-1-amine (CAS 220699-99-0)
- 1-Boc-4-(phenylamino)piperidine (CAS 125541-22-2)
- (2e)-3-(2,5-Dimethyl-1-propyl-1h-pyrrol-3-yl)prop-2-enoic acid (CAS 851175-84-3)
- 4-[(2-Chloro-4-formyl-6-methoxyphenoxy)methyl]benzoic acid (CAS 428826-63-5)
- 5-[2-(Trifluoromethoxy)phenyl]-2H-tetrazole (CAS 1261268-92-1)
- Insulin Degludec Impurity 25 (CAS CATO-C4X-215725)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com