7-Hydroxy-5-oxo-5H-pyrano[4,3-b]pyridine-8-carbaldehyde CAS 399017-32-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 399017-32-4 |
| Molecular Formula | C9H5NO4 |
| Molecular Weight | 191.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Hydroxy-5-oxo-5H-pyrano[4,3-b]pyridine-8-carbaldehyde (CAS 399017-32-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H5NO4. Molecular weight: 191.14 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H5NO4 |
| Molecular Weight | 191.14 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- 4-Hydroxy-3-nitro-1,5-naphthyridine (CAS 85938-78-9)
- 6-Hydroxy-5-oxo-5H-indole-2-carboxylic acid (CAS 827629-21-0)
- 4-Hydroxy-6-oxo-1,6-dihydropyridine-3-sulfonic acid (CAS 163137-36-8)
- 3-Hydroxy-5-(trifluoromethyl)picolinaldehyde (CAS 1211528-13-0)
- 6-Hydroxy-2-(trifluoromethyl)nicotinaldehyde (CAS 1227514-21-7)
- 2-Hydroxy-5-(trifluoromethyl)isonicotinaldehyde (CAS 1227576-18-2)
- 2-Hydroxy-6-(trifluoromethyl)isonicotinaldehyde (CAS 1227576-30-8)
- 2-Hydroxy-3-(trifluoromethyl)isonicotinaldehyde (CAS 1227580-89-3)
Recommended Standards
- 6-Nitroquinoxalin-2(1H)-one (CAS 25652-34-0)
- 7-Nitro-1H-indazole-3-carbaldehyde (CAS 887588-77-4)
- 6-Nitrocinnolin-4(1H)-one (CAS 86222-55-1)
- 1-Bromo-2-(hexyloxy)benzene (CAS 105474-59-7)
- 3-Bromo-5-methyl-benzenethiol (CAS 1822973-12-5)
- 1-(Quinolin-2-yl)propan-2-one (CAS 1531-30-2)
- (5S)-5-cyclopropylmorpholin-3-one (CAS 1357279-38-9)
- N-Nitroso Flucloxacillin Impurity 21 (CAS CATO-C4X-164721)
- 1-(4-Ethoxyphenyl)prop-2-en-1-ol (CAS 1537570-29-8)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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