4-Bromo-2,5-dimethylbenzaldehyde CAS 88111-74-4
| CAS No. | 88111-74-4 |
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-2,5-dimethylbenzaldehyde (CAS 88111-74-4), molecular formula C9H9BrO and molecular weight 213.07 g/mol, is a CATO reference standard with documented purity and traceability.
4-Bromo-2,5-dimethylbenzaldehyde (C9H9BrO) 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. 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), 4-Bromo-2,5-dimethylbenzaldehyde 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 | C9H9BrO |
| Molecular Weight | 213.07 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 5-Bromo-2-methyl-2,3-dihydrobenzofuran (CAS 102292-30-8)
- 3-bromo-1,5,6,7-tetrahydro-1,8-naphthyridine (CAS 1023813-80-0)
- 1-(2-Bromo-4-methylphenyl)ethanone (CAS 103286-27-7)
- 1-Bromo-3-cyclopropoxybenzene (CAS 1035690-22-2)
- trans-2-Bromo-1-indanol (CAS 10368-44-2)
- (R)-5-Bromo-2,3-dihydro-1H-inden-1-ol (CAS 1038919-63-9)
- 4-Bromo-2-cyclopropylphenol (CAS 1043871-14-2)
- 1-(6-Bromo-3-pyridyl)cyclopropanamine (CAS 1060811-36-0)
Recommended Standards
- 4’-Bromo-2’-methylacetophenone (CAS 65095-33-2)
- 4-Bromo-2,6-dimethylbenzaldehyde (CAS 5769-33-5)
- 4’-(Bromomethyl)acetophenone (CAS 51229-51-7)
- 4-Bromo-2-methylbenzimidamide (CAS 856166-20-6)
- 2-(Benzylthio)-1,4,5,6-tetrahydropyrimidine hydrochloride (CAS 6497-89-8)
- Degarelix Acetate Hydrate (CAS 934246-14-7)
- Benzyl 4,7-diazaspiro[2.5]octane-7-carboxylate hydrochloride (CAS 1630807-17-8)
- 5-(2-Chlorophenyl)picolinic acid (CAS 1221403-88-8)
- 1-Cyclopentyl-1H-imidazo[4,5-b]pyridin-2-ol (CAS 906532-84-1)
- 5-Amino-1-ethyl-3-methyl-1H-pyrazole-4-carbonitrile (CAS 102997-29-5)
- Benzo[d][1,3]selenazole-2-thiol (CAS 10486-58-5)
- 1-(Azepan-1-yl)-2-bromo-2-methylpropan-1-one (CAS 1225917-28-1)
- n-(2-Methoxyethyl)-1-(p-tolyl)propan-1-amine (CAS 1019499-83-2)
- Semaglutide Impurity 188 (CAS CATO-C4X-2226188)
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