3-Bromo-3-(3,5-dimethylphenyl)propiophenone CAS 898780-47-7
| CAS No. | 898780-47-7 |
| Molecular Formula | C17H17BrO |
| Molecular Weight | 317.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Bromo-3-(3,5-dimethylphenyl)propiophenone (CAS 898780-47-7), molecular formula C17H17BrO and molecular weight 317.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Bromo-3-(3,5-dimethylphenyl)propiophenone (C17H17BrO) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 317.22 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.
Physical & Chemical Properties
| Molecular Formula | C17H17BrO |
| Molecular Weight | 317.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-4'-(cyclopentyloxy)biphenyl (CAS 1352318-50-3)
- (7-bromo-1-oxo-indan-5-yl) 2,2-dimethylpropanoate (CAS 2763159-22-2)
- (E)-5-Bromo-2-isopropyl-4-methyl-6-styrylpyrimidine (CAS 70169-99-2)
- 3-Bromo-3-(2,6-dimethylphenyl)propiophenone (CAS 898754-64-8)
- 4-Bromo-3-(2,5-dimethylphenyl)propiophenone (CAS 898753-33-8)
- 4-Bromo-3-(2,6-dimethylphenyl)propiophenone (CAS 898754-67-1)
- 4-Bromo-3-(3,5-dimethylphenyl)propiophenone (CAS 898780-50-2)
- 2-Bromo-1,3-difluoro-5-(4-propylcyclohexyl)benzene (CAS 848093-70-9)
Recommended Standards
- 3-(4-Bromophenyl)-3,5-dimethylpropiophenone (CAS 898761-58-5)
- 3-(4-Bromophenyl)-1-(3,4-dimethylphenyl)propan-1-one (CAS 898761-55-2)
- 3-(4-Bromophenyl)-1-(2,6-dimethylphenyl)propan-1-one (CAS 898761-52-9)
- Iron(III) 2-ethylhexano-isopropoxide, 10% w/v in isopropanol (CAS 331720-17-3)
- 5-(1-Bromoethyl)-6-nitrobenzo[d][1,3]dioxole (CAS 1551078-87-5)
- 1-Glycylpiperidine-3-carboxylic acid (CAS 359821-47-9)
- (3aR,4R,6aS)-tert-Butyl 4-aminohexahydrocyclopenta[c]pyrrole-2(1H)-carboxylate (CAS 1251012-14-2)
- 2-(Trifluoromethyl)-6,11-dihydro-5H-benzo[b]pyrido[2,3-e][1,4]diazepin-7-ol (CAS 1039715-25-7)
- Ethyl 3-amino-1-methyl-1H-pyrrole-2-carboxylate (CAS 616225-05-9)
- 4-Nitrophenyloxoacetic Acid (CAS 14922-36-2)
- 2,5-Dibromoquinoline (CAS 120258-64-2)
- N-Phenylpyrrolidin-3-amine (CAS 17741-13-8)
- 209159-28-4 4-Cyclopentene-1,3-dione,2-(4-chlorophenyl)- CTK4E5449 (CAS 209159-28-4)
- Semaglutide impurity 286 (CAS CATO-C4X-2226286)
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