4-Bromo-3,4-dihydronaphthalen-1(2H)-one CAS 71545-99-8
| CAS No. | 71545-99-8 |
| Molecular Formula | C10H9BrO |
| Molecular Weight | 225.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-Bromo-3,4-dihydronaphthalen-1(2H)-one (C10H9BrO) is characterized by a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
4-Bromo-3,4-dihydronaphthalen-1(2H)-one (CAS 71545-99-8), molecular formula C10H9BrO and molecular weight 225.08 g/mol, is a CATO reference standard with documented purity and traceability.
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), 4-Bromo-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 | C10H9BrO |
| Molecular Weight | 225.08 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, 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.) | 1977 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 6-Bromo-3-methyl-2,3-dihydro-1H-inden-1-one (CAS 1021076-35-6)
- 4-Bromo-3-methyl-2,3-dihydro-1h-inden-1-one (CAS 102539-53-7)
- 5-Bromo-2,3-dihydrospiro[indene-1,2'-oxirane] (CAS 1026796-25-7)
- 5-Bromo-3-methyl-2,3-dihydro-1H-inden-1-one (CAS 103422-67-9)
- 5-Bromo-2-methyl-2,3-dihydro-1H-inden-1-one (CAS 104107-22-4)
- 6-Bromo-5-methyl-2,3-dihydro-1H-inden-1-one (CAS 1147548-82-0)
- 8-Bromo-2-tetralone (CAS 117294-21-0)
- 7-Bromo-6-methyl-2,3-dihydro-1H-inden-1-one (CAS 1260012-96-1)
Recommended Standards
- 4-(4-Bromophenyl)but-3-yn-1-ol (CAS 59099-79-5)
- 4-Bromo-5-methyl-2,3-dihydro-1H-inden-1-one (CAS 66790-62-3)
- 4-(4-Bromophenyl)-3-buten-2-one (CAS 20511-04-0)
- 4-Bromo-6-methyl-2,3-dihydro-1H-inden-1-one (CAS 876-91-5)
- (4-Iodopyridin-2-yl)methanol (CAS 565237-06-1)
- 4-Carbamoyl-1H-1,2,3-triazole-5-carboxylic acid (CAS 101252-32-8)
- 6-Iodo-2-methyl-1,3-benzothiazole (CAS 68867-20-9)
- 4-Methoxy-N'-methyl-N'-(2-(trifluoromethyl)quinazolin-4-yl)benzenesulfonohydrazide (CAS 320421-90-7)
- 2-(BRomomethyl)-5-fluorophenol (CAS 1260790-75-7)
- 4-(3-Chloro-2-fluoroanilino)-7-methoxy-6-[[1-(N-methylcarbamoylmethyl)piperidin-4-yl]oxy]quinazoline (CAS 848942-61-0)
- 2-Amino-3-(3-chlorophenyl)propan-1-ol (CAS 37844-06-7)
- N-(3-Amino-4-chlorophenyl)-4-(sec-butoxy)benzamide (CAS 1020054-71-0)
- 2-(2-Hydroxyethoxy)ethyl formate (CAS 54229-31-1)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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