Ethyl 7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylate CAS 6093-72-7
| CAS No. | 6093-72-7 |
| Molecular Formula | C13H12O5 |
| Molecular Weight | 248.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Ethyl 7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylate (CAS 6093-72-7), a certified reference material (molecular formula C13H12O5, MW 248.23 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Ethyl 7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 248.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Ethyl 7-methoxy-2-oxo-2H-1-benzopyran-3-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H12O5 |
| Molecular Weight | 248.23 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.) | 1958 |
Related Ethyl Standards
- 3-Methoxy-4-(4-methyl-furazan-3-ylmethoxy)-benzaldehyde (CAS 1018238-97-5)
- 3-(7-Methoxy-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 1365940-08-4)
- 3-(8-Methoxy-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 1365940-75-5)
- 3-(6-Methoxy-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 1365941-12-3)
- Methyl 1-(2-methoxy-2-oxoethyl)-1H-indazole-5-carboxylate (CAS 1506449-10-0)
- Ethyl 8-methoxy-2-oxo-2H-chromene-3-carboxylate (CAS 1729-02-8)
- Ethyl 4-methoxy-2-oxo-2H-chromene-3-carboxylate (CAS 19723-37-6)
- 1-Methoxy-3-[(4-methylphenyl)methyl]imidazolidine-2,4,5-trione (CAS 320422-97-7)
Recommended Standards
- Ethyl 7-hydroxy-5-methyl-2-oxo-2H-chromene-3-carboxylate (CAS 52400-12-1)
- Ethyl 7-methoxy-4-oxo-4H-chromene-2-carboxylate (CAS 38322-74-6)
- Ethyl 6-Nitroindole-3-acetate (CAS 501919-82-0)
- Ethyl 7-methoxy-4-oxo-4H-chromene-3-carboxylate (CAS 93097-22-4)
- 1'-Methyl-[1,4'-bipiperidine]-3-carboxylic acid (CAS 856438-17-0)
- 1-Acetyl-2-bromoindolin-3-one (CAS 132993-66-9)
- 3-(2-Hydroxyethoxy)propane-1,2-diol (CAS 14641-24-8)
- m-PEG20-alcohol (CAS 1059605-06-9)
- Arjunglucoside I (CAS 62319-70-4)
- 3-(5-Fluoro-2-(trifluoromethyl)phenyl)propanoic acid (CAS 916420-43-4)
- Ethyl 3-(bromomethyl)isonicotinate (CAS 301666-68-2)
- Rel-(2R,3R)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-3-(p-tolyl)propanoic acid (CAS 1217647-86-3)
- 1-(6-Amino-3,4-dihydroquinolin-1(2h)-yl)-2-methylpropan-1-one (CAS 869945-53-9)
- Tirzepatide Impurity 11 TFA salt (CAS CATO-C4X-324011)
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 18665070610 / Nicole.chen@cato-chem.com