3-Bromo-8-methoxy-6,6-dimethylnaphtho[2,3-b]benzofuran-11(6H)-one CAS 1256588-91-6
| CAS No. | 1256588-91-6 |
| Molecular Formula | C19H15BrO3 |
| Molecular Weight | 371.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-8-methoxy-6,6-dimethylnaphtho[2,3-b]benzofuran-11(6H)-one (CAS 1256588-91-6), molecular formula C19H15BrO3 and molecular weight 371.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Bromo-8-methoxy-6,6-dimethylnaphtho[2,3-b]benzofuran-11(6H)-one (C19H15BrO3) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-Bromo-8-methoxy-6,6-dimethylnaphtho[2,3-b]benzofuran-11(6H)-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 | C19H15BrO3 |
| Molecular Weight | 371.22 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Bromo Standards
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Recommended Standards
- G1X1263AMM 603-36-1 Triphenylstibine Stibine, triphenyl- Triphenylantimony 4-16-00-01198 (Beilstein Handbook Reference) BRN 3608108 CCRIS 1300 EINECS 210-037-6 NSC 2844 Trifenylstibin [Czech] Triphenyl stibine Triphenylstibane Trifenylstibin UNII-G1X1263AMM (CAS 603-36-1)
- 3-(2-Bromoacetyl)-10,11-dihydro-5H-dibenzo[c,g]chromen-8(9H)-one (CAS 1378390-29-4)
- n-(4-Bromophenyl)-4-methyl-3-nitrobenzenesulfonamide (CAS 296273-91-1)
- 1-(3,4-Dichlorophenyl)-N-(pyridin-3-ylmethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 872621-61-9)
- ethyl 3-{[2-(ethoxycarbonyl)-4,4,4-trifluoro-3-oxobut-1-enyl]amino}thieno[2,3-b]pyridine-2-carboxylate (CAS 648410-28-0)
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- 6-Chloro-7-cyclopropyl-2-(tetrahydrofuran-2-yl)-7H-purine (CAS 1707603-58-4)
- 3-{[(4-chlorophenyl)methyl]sulfanyl}-5-({[(2,6-dichlorophenyl)methyl]sulfanyl}methyl)-4-ethyl-4H-1,2,4-triazole (CAS 344270-85-5)
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