3-Bromo-2,5-dimethylphenol CAS 72638-60-9
| CAS No. | 72638-60-9 |
| Molecular Formula | C8H9BrO |
| Molecular Weight | 201.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Bromo-2,5-dimethylphenol.
3-Bromo-2,5-dimethylphenol (CAS 72638-60-9), molecular formula C8H9BrO and molecular weight 201.06 g/mol, is a CATO reference standard with documented purity and traceability.
3-Bromo-2,5-dimethylphenol (C8H9BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 3-Bromo-2,5-dimethylphenol 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 | C8H9BrO |
| Molecular Weight | 201.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1977 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-1-cyclobutylpyrazole (CAS 1002309-50-3)
- 4-Bromo-5-methylbenzene-1,2-diamine (CAS 102169-44-8)
- 5-Bromo-3-ethylpyridin-2-amine (CAS 1037253-14-7)
- 5-Bromo-2,3-dimethylpyridin-4-amine (CAS 1038989-17-1)
- 3-Bromo-2-methyl-2,4,5,6-tetrahydrocyclopenta[c]pyrazole (CAS 1043920-65-5)
- 2-Bromo-4,6-dimethyl-pyridin-3-ylamine (CAS 104829-98-3)
- 2-Bromo-6-methylbenzyl Alcohol (CAS 1055969-07-7)
- 3-Bromo-N,N-dimethylpyridin-2-amine (CAS 1060801-39-9)
Recommended Standards
- 3-Bromo-2,4-dimethylphenol (CAS 74571-81-6)
- 3-Bromo-2,6-dimethylpyridin-4-amine (CAS 33259-24-4)
- 3-Bromo-1-(1-methylcyclopropyl)-1H-pyrazole (CAS 2468058-16-2)
- 3-Bromo-2-methylanisole (CAS 31804-36-1)
- 1,3,5-Trimethyl-1H-pyrrole-2,4-dicarbaldehyde (CAS 102879-52-7)
- Diethyl 2-(((4-nitrophenyl)amino)methylene)malonate (CAS 78596-42-6)
- 1-Piperidineethanol-d4 (CAS 1189705-44-9)
- 2-(4-Bromophenoxy)-2-phenylethan-1-amine (CAS 886765-01-1)
- tert-Butyl (2-bromo-4,5-difluorophenyl)carbamate (CAS 1802815-25-3)
- N-((1-Benzyl-1H-imidazol-2-yl)methylene)aniline (CAS 13750-77-1)
- 5-Phenylpent-2-enoic acid (CAS 24271-22-5)
- Methotrexate Impurity 25 (CAS CATO-C4X-115425)
- 7-Benzyl-1,4-dioxa-7-azaspiro[4.5]decane-8-carbonitrile (CAS 132462-23-8)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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