1,5-Dibromo-2,3-dimethylbenzene CAS 51209-82-6
| CAS No. | 51209-82-6 |
| Molecular Formula | C8H8Br2 |
| Molecular Weight | 263.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 263.96 g/mol gives 1,5-Dibromo-2,3-dimethylbenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1,5-Dibromo-2,3-dimethylbenzene (CAS 51209-82-6), a certified reference material (molecular formula C8H8Br2, MW 263.96 g/mol) for analytical method development and quality control.
The molecular framework of 1,5-Dibromo-2,3-dimethylbenzene (C8H8Br2) is characterized by bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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).
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), 1,5-Dibromo-2,3-dimethylbenzene 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 | C8H8Br2 |
| Molecular Weight | 263.96 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 2,5-Dibromo-m-xylene (CAS 100189-84-2)
- 4,5-Dibromo-m-xylene (CAS 116668-61-2)
- 1,2-Dibromo-4-ethylbenzene (CAS 134940-69-5)
- 1,2-Dibromo-3,4-dimethylbenzene (CAS 24932-49-8)
- 1,3-Dibromo-2,4-dimethylbenzene (CAS 90434-19-8)
- 1,3-Dibromo-2,5-dimethylbenzene (CAS 66788-13-4)
- 1,3-DIBROMO-2-ETHYLBENZENE (CAS 41053-30-9)
- 1,4-Dibromo-2-ethylbenzene (CAS 289039-53-8)
Recommended Standards
- 1,5-Dibromo-2,4-dimethylbenzene, 97% (CAS 615-87-2)
- 1-Bromo-2-(1-bromoethyl)benzene (CAS 62384-31-0)
- 1-Bromo-2-(bromomethyl)-4-methylbenzene (CAS 27561-50-8)
- 1-Bromo-3-(1-bromoethyl)benzene (CAS 59770-98-8)
- tert-Butyl 3-fluoro-3-(4-formylphenyl)azetidine-1-carboxylate (CAS 1357614-52-8)
- 2-(2,4-Dibromo-5-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1804447-25-3)
- 4-Chloro-2,5-difluorophenylboronic acid (CAS 2055778-26-0)
- (3R,4R)-1-Benzyl-3,4-[(bis-N-chloroacetyl)-diamino]pyrrolidine (CAS 1134733-87-1)
- Ethyl 3-((2-fluorophenoxy)methyl)-1H-1,2,4-triazole-5-carboxylate (CAS 1416340-84-5)
- Maytansinol Impurity 2 (Ansamitocin PDM-3) (CAS 77353-69-6)
- Ethyl 2-chloro-2-[2-(2,4-difluorophenyl)hydrazin-1-ylidene]acetate (CAS 1264087-24-2)
- 1,2-Bis(3-methoxyphenyl)ethane (CAS 36707-27-4)
- Trimethoxy(3-thiocyanatopropyl)silane (CAS 56859-24-6)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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