3-((4-Bromophenyl)sulfonyl)-7-hydroxy-2H-chromen-2-one CAS 866013-25-4
| CAS No. | 866013-25-4 |
| Molecular Formula | C15H9BrO5S |
| Molecular Weight | 381.20 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 3-((4-Bromophenyl)sulfonyl)-7-hydroxy-2H-chromen-2-one.
3-((4-Bromophenyl)sulfonyl)-7-hydroxy-2H-chromen-2-one (CAS 866013-25-4), molecular formula C15H9BrO5S and molecular weight 381.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, 3-((4-Bromophenyl)sulfonyl)-7-hydroxy-2H-chromen-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 381.20 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.
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 | C15H9BrO5S |
| Molecular Weight | 381.20 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromophenyl Standards
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- n-(4-Bromophenyl)-3,4-dichlorobenzenesulfonamide (CAS 1902-15-4)
- 2-(3-Bromophenyl)-6-chloroquinoline-4-carbonyl chloride (CAS 1160263-26-2)
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Recommended Standards
- 2-Chloro-N-(2-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)thio)phenyl)acetamide (CAS 338407-58-2)
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- 1-(3,4-Dichlorophenyl)-3-[3-[(Trifluoromethyl)Thio]Phenyl]Urea (CAS 93856-96-3)
- 5-[(2,4-Dichlorophenoxy)methyl]-1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazole (CAS 478031-76-4)
- 2,6-Bis[2-(2-pyridinyl)-5-oxazolyl]pyridine (CAS 1224193-58-1)
- 2-(2-Isobutyl-4-(trifluoromethyl)imidazo[1,2-a][1,8]naphthyridin-8-yl)-1,3,4-oxadiazole (CAS 1431425-66-9)
- 1-(2-Fluorobenzoyl)-3-methylpiperazine (CAS 1240567-73-0)
- (Rp)-(1R,2S,5R)-2-Isopropyl-5-methylcyclohexyl phenyl (2-phenylpropan-2-yl)phosphonate (CAS 1592980-36-3)
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- 3,3＇-Diaminobenzidine (CAS 91-95-2)
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- N-(Dicyclopropylmethyl)-4,5-dihydrooxazol-2-amine (CAS 54187-04-1)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
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