11-(Bromomethyl)-12-methyl-9,10-dihydro-9,10-ethanoanthracene CAS 58240-61-2
| CAS No. | 58240-61-2 |
| Molecular Formula | C18H17Br |
| Molecular Weight | 313.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
11-(Bromomethyl)-12-methyl-9,10-dihydro-9,10-ethanoanthracene (CAS 58240-61-2) is a high-purity analytical reference standard with the molecular formula C18H17Br and a molecular weight of 313.23 g/mol.
Structurally, 11-(Bromomethyl)-12-methyl-9,10-dihydro-9,10-ethanoanthracene (C18H17Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 313.23 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C18H17Br |
| Molecular Weight | 313.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Br-containing |
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Recommended Standards
- 1-(4-Methoxyphenoxy)-2-nitro-4-(trifluoromethyl)benzene (CAS 1996-69-6)
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- 1-(4-(4-Bromophenoxy)butyl)-4-methylpiperazine (CAS 93699-37-7)
- 1-Methyl-2,6-dioxo-N-(3-(trifluoromethyl)phenyl)-1,2,3,6-tetrahydropyrimidine-4-carboxamide (CAS 861208-47-1)
- Pinostilbenoside (CAS 58762-96-2)
- 2-Amino-N-(((S)-1-benzylpiperidin-2-yl)methyl)-N-methylpropanamide (CAS 1354026-03-1)
- (3R)-1-N-Cbz-3-Aminopyrrolidine (CAS 122536-73-6)
- 5-Bromo-2-(naphthalen-2-yl)isoindoline-1,3-dione (CAS 82104-05-0)
- 9,10-Diphenylanthracene-2-boronic Acid(contains varying amounts of Anhydride) (CAS 597553-98-5)
- 2,5-diiodopyridine (CAS 116195-81-4)
- Sulfadimethoxine Impurity 20 (CAS CATO-C4X-150420)
- Ethyl 3-methylheptanoate (CAS 37492-08-3)
- Ethyl 2-(cyclopropylamino)propanoate (CAS 2170123-25-6)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
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