7-Bromo-1,4,4-trimethyl-3,4-dihydroquinolin-2(1H)-one CAS 129790-06-3
| CAS No. | 129790-06-3 |
| Molecular Formula | C12H14BrNO |
| Molecular Weight | 268.15 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.
7-Bromo-1,4,4-trimethyl-3,4-dihydroquinolin-2(1H)-one (CAS 129790-06-3) is a high-purity analytical reference standard with the molecular formula C12H14BrNO and a molecular weight of 268.15 g/mol.
Structurally, 7-Bromo-1,4,4-trimethyl-3,4-dihydroquinolin-2(1H)-one (C12H14BrNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 268.15 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C12H14BrNO |
| Molecular Weight | 268.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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- tert-Butyl N-[(1-benzyl-3-methylpyrrolidin-3-yl)methyl]carbamate (CAS 872716-54-6)
- 2-Isobutyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiazole (CAS 905300-74-5)
- Tramazoline hydrochloride monohydrate CRS (CAS 74195-73-6)
- n-Cyclohexyl-4-iodo-N-methylbenzamide (CAS 1119408-76-2)
- (5-Butoxy-2-fluorophenyl)boronic acid (CAS 849062-31-3)
- 1-(2,3-Dihydro-1H-inden-2-yl)ethanone (CAS 33982-85-3)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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