7-Bromo-4-methyl-3,4-dihydronaphthalen-1(2H)-one CAS 51644-34-9
| CAS No. | 51644-34-9 |
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 239.11 g/mol gives 7-Bromo-4-methyl-3,4-dihydronaphthalen-1(2H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Bromo-4-methyl-3,4-dihydronaphthalen-1(2H)-one (CAS 51644-34-9), molecular formula C11H11BrO and molecular weight 239.11 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H11BrO, 7-Bromo-4-methyl-3,4-dihydronaphthalen-1(2H)-one contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 239.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-Bromo-4-methyl-3,4-dihydronaphthalen-1(2H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H11BrO |
| Molecular Weight | 239.11 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.) | 1971 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-6-isopropyl-1H-indazole (CAS 1000343-77-0)
- 2-(6-Bromo-1H-indol-2-yl)ethan-1-amine (CAS 1018637-87-0)
- 1-Bromo-3-(propan-2-yl)imidazo[1,5-a]pyridine (CAS 1018665-45-6)
- 3-Bromo-2-isopropylpyrazolo[1,5-a]pyridine (CAS 102064-43-7)
- 2-Bromo-7-methyl-3,4-dihydronaphthalen-1(2H)-one (CAS 104115-64-2)
- 5-Bromo-1-isopropyl-1H-pyrrolo[2,3-b]pyridine (CAS 1059064-04-8)
- 2-(4-Bromo-1H-indol-3-yl)ethan-1-amine (CAS 108061-74-1)
- 4-Bromo-6,7-dimethyl-2,3-dihydro-1H-inden-1-one (CAS 112631-50-2)
Recommended Standards
- 7-Bromo-3,3-dimethyl-2,3-dihydro-1h-inden-1-one (CAS 67159-86-8)
- 8-Bromo-2,2-dimethyl-2H-chromene (CAS 264264-94-0)
- 7-Bromo-2-methyl-3,4-dihydronaphthalen-1(2H)-one (CAS 32281-99-5)
- 9-Bromo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-5-one (CAS 72472-29-8)
- N-Formyl-1H-pyrrole-2-carboxamide (CAS 160156-23-0)
- 1-[(4-fluorophenyl)methyl]-1H-pyrazole-4-carbaldehyde (CAS 1342979-38-7)
- 1-Benzyl-6-tosyl-1,6-diazaspiro[3.3]Heptan-3-ol (CAS 1349199-70-7)
- Pemafibrate Impurity 17 (CAS CATO-C4X-290317)
- 2-Bromo-N-(2-methylphenyl)propanamide (CAS 19397-79-6)
- tert-Butyl 1-oxo-2,6,9-triazaspiro[4.5]decane-9-carboxylate (CAS 2181799-75-5)
- N-(3,5-dichlorophenyl)-2-(1-methyl-1H-pyrrol-2-yl)-2-oxoacetamide (CAS 477871-97-9)
- 4-((Tert-Butoxycarbonyl)Amino)-1-Methylcyclohexanecarboxylic Acid (CAS 1262406-79-0)
- 3-Cyclopropoxy-N,N-dimethyl-5-(trifluoromethyl)pyridin-4-amine (CAS 1243472-11-8)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com