Butyl 7-fluoro-2-methyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxylate CAS 306976-34-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 306976-34-1 |
| Molecular Formula | C18H16FNO4 |
| Molecular Weight | 329.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Butyl 7-fluoro-2-methyl-5-oxo-5H-chromeno[2,3-b]pyridine-3-carboxylate (CAS 306976-34-1) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H16FNO4. Molecular weight: 329.32 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H16FNO4 |
| Molecular Weight | 329.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 1-(3-Chlorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxylic acid (CAS 1268028-62-1)
- 2-Cyclopropoxy-6-methylaniline (CAS 1243391-10-7)
- 8-Methoxypyrimido[4,5-b]quinolin-2-amine (CAS 1098340-26-1)
- N'-(Furan-2-ylmethylene)-4-methylbenzohydrazide (CAS 113906-79-9)
- (2S)-3-Phenyl-N1-[5,6,7,8-tetrahydro-2-(4-pyridinyl)[1]benzothieno[2,3-d]pyrimidin-4-yl]-1,2-propanediamine (CAS 1438881-19-6)
- 3-(Azetidin-3-ylmethyl)-1-methyl-1h-indazole (CAS 1499376-86-1)
- Tirzepatide Impurity 25 X TFA Salt (CAS CATO-C4X-324025)
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