7-(Benzyloxy)-6-chloro-4-methyl-2H-chromen-2-one CAS 304880-89-5
| CAS No. | 304880-89-5 |
| Molecular Formula | C17H13ClO3 |
| Molecular Weight | 300.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 7-(Benzyloxy)-6-chloro-4-methyl-2H-chromen-2-one (CAS 304880-89-5), a certified reference material (molecular formula C17H13ClO3, MW 300.74 g/mol) for analytical method development and quality control.
Structurally, 7-(Benzyloxy)-6-chloro-4-methyl-2H-chromen-2-one (C17H13ClO3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 300.74 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C17H13ClO3 |
| Molecular Weight | 300.74 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 1-(2-Chloroquinolin-3-yl)ethanone (CAS 94741-41-0)
- 5-(tert-Butoxycarbonyl)-5,6,7,8-tetrahydro-1,5-naphthyridine-2-carboxylic acid (CAS 1823258-64-5)
- N-ethyl-3-(trifluoromethyl)aniline hydrochloride (CAS 1909305-66-3)
- 2-(o-Tolylamino)quinoline-4-carbohydrazide (CAS 134721-73-6)
- 2-Bromo-N-(oxetan-3-yl)pyridin-4-amine (CAS 2410701-44-7)
- 5-(Methylamino)-N-(1H-pyrazol-3-yl)furan-2-carboxamide (CAS 826991-15-5)
- 2-((1R,5S,6s)-3-Azabicyclo[3.1.0]hexan-6-yl)ethan-1-ol (CAS 1354427-47-6)
- (1S,2S)-1-(bromomethyl)-2-methyl-cyclopropane (CAS 313272-18-3)
- N-(5-(Methylthio)-1,3,4-thiadiazol-2-yl)-2-(trifluoromethyl)benzamide (CAS 391875-79-9)
- Liraglutide Impurity 16 TFA Salt (CAS CATO-C4X-199216)
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