1-(3-Bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone CAS 27452-18-2
| CAS No. | 27452-18-2 |
| Molecular Formula | C16H21BrO |
| Molecular Weight | 309.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(3-Bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone (CAS 27452-18-2), molecular formula C16H21BrO and molecular weight 309.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(3-Bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)ethanone (C16H21BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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 309.24 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).
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 | C16H21BrO |
| Molecular Weight | 309.24 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 2-(3-(Trifluoromethyl)phenyl)-3a,4,7,7a-tetrahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione (CAS 433264-21-2)
- (1S,2S)-2-(Difluoromethyl)cyclopropanecarboxylic acid (CAS 1820569-46-7)
- 6-(4-Bromophenyl)-7-methyl-2-(trifluoromethyl)-7H-pyrimido[4,5-b][1,4]oxazin-4-amine (CAS 1956382-27-6)
- 1-(4-Isopropylcyclohexyl)prop-2-en-1-one (CAS 1491762-33-4)
- Methyl 3-(3-methylbut-2-en-1-yl)-1,4-bis(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-2-naphthoate (CAS 90685-26-0)
- Oxethazaine Hydrochloride - API Standards (CAS 13930-31-9)
- 2-Methyl-3-(2-oxo-2-(thiophen-2-yl)ethyl)naphthalene-1,4-dione (CAS 130836-94-1)
- 2-Amino-3-(difluoromethyl)-5-iodoisonicotinonitrile (CAS 1805349-28-3)
- 3-Amino-4-chloro-1-methylpyridin-2(1H)-one (CAS 1447953-26-5)
- 4,4'-Dimethyl-2,2'-bipyridyl 1-Oxide (CAS 81998-03-0)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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