7-Hydroxy-N-isobutyl-2-oxo-2H-chromene-3-carboxamide CAS 91153-72-9
| CAS No. | 91153-72-9 |
| Molecular Formula | C14H15NO4 |
| Molecular Weight | 261.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-Hydroxy-N-isobutyl-2-oxo-2H-chromene-3-carboxamide (CAS 91153-72-9), a certified reference material (molecular formula C14H15NO4, MW 261.27 g/mol) for analytical method development and quality control.
7-Hydroxy-N-isobutyl-2-oxo-2H-chromene-3-carboxamide (C14H15NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C14H15NO4 |
| Molecular Weight | 261.27 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1983 |
| Nitrogen Atoms | 1 |
Related Hydroxy Standards
- Ethyl 4-hydroxy-8-methoxy-6-methylquinoline-3-carboxylate (CAS 1315343-70-4)
- 7-Hydroxy-4-(morpholinomethyl)-2H-chromen-2-one (CAS 25392-50-1)
- Ethyl 4-hydroxy-6-methoxy-2-methylquinoline-3-carboxylate (CAS 88960-43-4)
- ethyl 4-hydroxy-6-methoxy-8-methylquinoline-3-carboxylate (CAS 384820-98-8)
- Ethyl 4-hydroxy-7-methoxy-8-methylquinoline-3-carboxylate (CAS 922520-00-1)
- Ethyl 4-hydroxy-8-methoxy-2-methylquinoline-3-carboxylate (CAS 88960-42-3)
- ethyl 4-hydroxy-8-methoxy-3-methylquinoline-2-carboxylate (CAS 50689-43-5)
- 4-Hydroxy-5-methyl-2-(pyridin-3-yl)quinoline-3-carbonitrile (CAS 1251033-70-1)
Recommended Standards
- 8-Ethoxy-1-ethyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 34610-34-9)
- 7-(Diethylamino)coumarin-3-carboxylic Acid (CAS 50995-74-9)
- 9,10-Dimethyl-11-oxo-8-oxa-10-azatricyclo[7.3.1.0,2,7]trideca-2,4,6-triene-12-carboxylic acid (CAS 349549-26-4)
- 6,7-Dimethoxy-9-methyl-2,3-dihydrofuro[2,3-b]quinolin-4(9H)-one (CAS 62595-68-0)
- 2-Chloro-3-hydroxy-2-cyclohexenone (CAS 89466-67-1)
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Why CATO?
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