Ethyl 3-(3-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate CAS 339009-30-2
| CAS No. | 339009-30-2 |
| Molecular Formula | C21H16ClNO5 |
| Molecular Weight | 397.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 3-(3-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate.
CATO supplies Ethyl 3-(3-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (CAS 339009-30-2), a certified reference material (molecular formula C21H16ClNO5, MW 397.81 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Ethyl 3-(3-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 397.81 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 3-(3-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-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 | C21H16ClNO5 |
| Molecular Weight | 397.81 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ethyl Standards
- Ethyl 3-(4-chlorobenzamido)-2-oxo-6-phenyl-2H-pyran-5-carboxylate (CAS 338404-92-5)
- Ethyl 2-(3-chlorobenzamido)-3-cyano-4,7-dihydrothieno[2,3-c]pyridine-6(5H)-carboxylate (CAS 864927-18-4)
- 2-(4-Chlorobenzamido)-N-(4-fluorobenzyl)thiazole-4-carboxamide (CAS 954682-18-9)
- Methyl 2-(4-chlorobenzamido)-5-(diethylcarbamoyl)-4-methylthiophene-3-carboxylate (CAS 335406-04-7)
- Ethyl 2-(2-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 331760-72-6)
- Ethyl 2-(4-chlorobenzamido)-4-phenylthiophene-3-carboxylate (CAS 77261-20-2)
- 1-(2-Chlorobenzamido)-3-cyanopropan-2-yl 3-(trifluoromethyl)benzoate (CAS 339101-94-9)
- Methyl 4-{[2-(4-chlorobenzamido)-4-(trifluoromethyl)phenyl]amino}butanoate (CAS 339101-69-8)
Recommended Standards
- [4-(4-Methylphenoxy)-3-nitrophenyl]methyl 4-chlorobenzoate (CAS 338960-81-9)
- 4-(4-Chloro-3-nitrobenzoyl)-8-ethyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-44-9)
- Fruquintinib Impurity 6 (CAS CATO-C4X-30376)
- (4-Amino-2-((4-chlorophenyl)amino)thiazol-5-yl)(3-(trifluoromethyl)phenyl)methanone (CAS 339020-09-6)
- 4-Chloro-N-(1-phenylethyl)aniline (CAS 192057-95-7)
- Ethyl 2-(3-(tert-butyl)-4-hydroxyphenoxy)tetradecanoate (CAS 31994-60-2)
- Norflurazepam (CAS 17617-59-3)
- (1R,2S)-2-(trifluoromethyl)cyclobutane-1-carboxylic acid (CAS 2165708-25-6)
- ivDde-Lys-OH (CAS 3033714-30-3)
- Methyl 4-(Cbz-amino)tetrahydropyran-4-carboxylate (CAS 1427475-27-1)
- 4-(4-Bromo-2-chlorophenyl)pyrimidin-2-amine (CAS 913322-69-7)
- N-(4-chloro-2,5-dimethoxyphenyl)-2-cyanoacetamide (CAS 549484-19-7)
- 2-hydrazinyl-4,5-dihydro-1H-imidazole hydroiodide (CAS 39889-17-3)
- SAMS Peptide (CAS 125911-68-4)
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