7-Hydroxy-3-(4-methylbenzenesulfonyl)-2H-chromen-2-one CAS 78440-50-3
| CAS No. | 78440-50-3 |
| Molecular Formula | C16H12O5S |
| Molecular Weight | 316.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
7-Hydroxy-3-(4-methylbenzenesulfonyl)-2H-chromen-2-one (CAS 78440-50-3) is a high-purity analytical reference standard with the molecular formula C16H12O5S and a molecular weight of 316.33 g/mol.
The molecular framework of 7-Hydroxy-3-(4-methylbenzenesulfonyl)-2H-chromen-2-one (C16H12O5S) is characterized by a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 7-Hydroxy-3-(4-methylbenzenesulfonyl)-2H-chromen-2-one 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 | C16H12O5S |
| Molecular Weight | 316.33 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
- 4-(5-Hydroxy-3-phenylisoxazol-4-yl)benzenesulfonamide (CAS 181695-83-0)
- 2-Hydroxy-4-(((2-thioxobenzo[d]oxazol-3(2H)-yl)methyl)amino)benzoic acid (CAS 56617-09-5)
- 7-Hydroxy-2-(2-hydroxyphenyl)-5,8-dimethoxychroman-4-one (CAS 1351338-14-1)
- (R)-9-((2-Hydroxy-3-methylbut-3-en-1-yl)oxy)-4-methoxy-7H-furo[3,2-g]chromen-7-one (CAS 35214-82-5)
- 5-Hydroxy-3-(4-hydroxy-2-methoxyphenyl)-7-methoxychroman-4-one (CAS 61020-70-0)
- 3-(2-Hydroxy-5-methylphenyl)-3-phenylisobenzofuran-1(3H)-one (CAS 141034-37-9)
- 3-Hydroxy-2-(6-methylpyridin-2-yl)-3-phenylisoindolin-1-one (CAS 3532-40-9)
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Recommended Standards
- 6-(Difluoromethoxy)-3-phenylbenzo[4,5]imidazo[2,1-b]thiazole (CAS 339016-08-9)
- 8-Methoxy-N-(4-methylthiazol-2-yl)-2-oxo-2H-chromene-3-carboxamide (CAS 484022-70-0)
- 5-Methyl-4-nitro-1-(phenylsulfonyl)-1H-indole (CAS 827607-93-2)
- Ethyl 2-(benzofuran-2-carboxamido)thiazole-4-carboxylate (CAS 325746-49-4)
- 4-Fluoro-1H-indazol-5-amine (CAS 935250-69-4)
- Ethyl 4-((1,3-dioxoisoindolin-2-yl)oxy)butanoate (CAS 27091-83-4)
- Benzyl 3-{[(tert-butoxy)carbonyl]amino}azetidine-1-carboxylate (CAS 112257-42-8)
- Ethyl 3-aminobut-2-enoate hydrochloride (CAS 89095-42-1)
- Elagolix Impurity 12 (CAS CATO-C4X-206812)
- N-(1-(6-Chloro-5-methoxy-1H-indol-3-yl)propan-2-yl)acetamide (CAS 68935-46-6)
- 5-Ethoxy-2-propyl-1H-benzo[d]imidazole (CAS 283612-24-8)
- 7-Bromo-2,1,3-benzothiadiazole-4-carboxaldehyde (CAS 1071224-34-4)
- 2,4,6-Tris(4-nitrophenyl)-1,3,5-triazine (CAS 13960-34-4)
- Neuropeptide Y, porcine (CAS 82785-45-3)
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