7-(2-Hydroxyethoxy)-4-methyl-2h-chromen-2-one CAS 91963-63-2
| CAS No. | 91963-63-2 |
| Molecular Formula | C12H12O4 |
| Molecular Weight | 220.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 7-(2-Hydroxyethoxy)-4-methyl-2h-chromen-2-one (CAS 91963-63-2), a certified reference material (molecular formula C12H12O4, MW 220.22 g/mol) for analytical method development and quality control.
7-(2-Hydroxyethoxy)-4-methyl-2h-chromen-2-one (C12H12O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
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 | C12H12O4 |
| Molecular Weight | 220.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1983 |
Related Hydroxyethoxy Standards
- 7-(2-Hydroxyethoxy)quinazolin-4(1H)-one (CAS 786681-82-1)
- 2-(2-(2-Hydroxyethoxy)ethoxy)ethyl butyrate (CAS 81558-07-8)
- 5-((2-Hydroxyethoxy)methyl)quinolin-8-ol (CAS 7545-66-6)
- 1-(2-(2-Hydroxyethoxy)ethyl)-3-methyl-2-thioxoimidazolidin-4-one (CAS 88850-31-1)
- Methyl 2-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)acetate (CAS 77303-63-0)
- 2-(2-(2-Hydroxyethoxy)ethyl)-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one (CAS 1247793-53-8)
- 2-(2-Hydroxyethoxy)ethyl Benzoate (CAS 20587-61-5)
- 5-(2-Hydroxyethoxy)isophthalic acid (CAS 152845-29-9)
Recommended Standards
- 6-Propoxybenzofuran-2-carboxylic acid (CAS 887569-54-2)
- 6-Nitro-2-propylisoindolin-1-one (CAS 807343-26-6)
- 7-(3-Hydroxypropoxy)-4(3H)-quinazolinone (CAS 557770-89-5)
- 6-Methyl-3-propyl-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 953739-35-0)
- 4-(2-Bromoethoxy)-4-hydroxybenzophenone (CAS 79578-62-4)
- 2-(Chloromethyl)-6-cyano-3-(difluoromethyl)-4-methylpyridine (CAS 1805291-82-0)
- 4-Anisaldehyde-13C6 (CAS 1189441-55-1)
- Cyclobutyl(2,3-dihydrobenzofuran-5-yl)methanamine (CAS 1021058-13-8)
- 2-Morpholinocyclopentan-1-amine (CAS 953888-87-4)
- 2-Isopropoxy-5-(methylthio)phenol (CAS 1243282-88-3)
- Methyl 3-[(2-methoxy-2-oxoethyl)sulfanyl]butanoate (CAS 78648-41-6)
- Methyl Indole-4-carboxylate (CAS 39830-66-5)
- 4-Hydroxy-2-nitrobiphenyl (CAS 20281-23-6)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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