1-Bromo-2,3-dimethylnaphthalene CAS 5334-79-2
| CAS No. | 5334-79-2 |
| Molecular Formula | C12H11Br |
| Molecular Weight | 235.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Bromo-2,3-dimethylnaphthalene is closely related to bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 1-Bromo-2,3-dimethylnaphthalene (CAS 5334-79-2), a certified reference material (molecular formula C12H11Br, MW 235.12 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H11Br, 1-Bromo-2,3-dimethylnaphthalene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.12 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 1-Bromo-2,3-dimethylnaphthalene 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 | C12H11Br |
| Molecular Weight | 235.12 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2-Bromo-6-methoxyimidazo[1,2-a]pyridine (CAS 1042141-33-2)
- 3-bromo-6-methoxyimidazo[1,2-a]pyridine (CAS 1044733-59-6)
- 3-bromo-5-methoxy-1H-pyrrolo[2,3-b]pyridine (CAS 1053655-76-7)
- 3-bromo-6-methoxy-1H-indazole (CAS 1134328-18-9)
- Methyl 2-Bromo-3-cyclopentylpropanoate (CAS 1191453-82-3)
- 4-bromo-5-methoxy-1H-indazole (CAS 1192004-62-8)
- 6-bromo-4-methoxypyrazolo[1,5-a]pyridine (CAS 1207557-36-5)
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Recommended Standards
- 1-Bromo-2-(2-Fluoro-Ethylsulfanyl)-Benzene (CAS 850349-36-9)
- 1-Bromo-2,4-dimethylnaphthalene (CAS 27689-71-0)
- 1-ACetyl-4-(2-bromoethyl)piperazine hydrobromide (CAS 696623-56-0)
- 1-Bromo-2,7-dimethylnaphthalene (CAS 37558-62-6)
- 1-(trifluoromethyl)-3-vinyl-benzene (CAS 402-24-4)
- cis-1,3,3-Trichloro-1-propene (cis-trans mixture, ~70% Z) (CAS 2953-50-6)
- 2-(4-Chloro-1-ethyl-1h-pyrazol-5-yl)acetic acid (CAS 1310379-51-1)
- Methyl 4-(4-Fluoro-5-methyl-2-nitrophenyl)butanoate (CAS 143655-55-4)
- 7-(morpholine-4-sulfonyl)-1,2,3,4-tetrahydroisoquinolin-1-one (CAS 1803598-98-2)
- 3-[(Cyanomethyl)sulfanyl]-N-(2,6-dimethylphenyl)thiophene-2-carboxamide (CAS 303150-92-7)
- 5-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-6-methylpyridin-2-amine (CAS 1513818-14-8)
- tert-Butyl 4-methyl-[1,4'-bipiperidine]-1'-carboxylate (CAS 1089279-42-4)
- (E)-2-(3-(dimethylamino)-1-ethoxyallylidene)malononitrile (CAS 98645-41-1)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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