α-Bromo-2-chlorophenylacetic Acid Methyl Ester CAS 85259-19-4
| CAS No. | 85259-19-4 |
| Molecular Formula | C9H8BrClO2 |
| Molecular Weight | 263.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
α-Bromo-2-chlorophenylacetic Acid Methyl Ester (CAS 85259-19-4), molecular formula C9H8BrClO2 and molecular weight 263.52 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H8BrClO2, α-Bromo-2-chlorophenylacetic Acid Methyl Ester contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), α-Bromo-2-chlorophenylacetic Acid Methyl Ester 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 | C9H8BrClO2 |
| Molecular Weight | 263.52 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, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- Methyl 2-(2-bromo-3-chlorophenyl)acetate (CAS 1021089-12-2)
- Methyl 2-bromo-5-chloro-4-methylbenzoate (CAS 1061314-02-0)
- 2-(4-Bromo-3-chlorophenyl)-1,3-dioxolane (CAS 1063712-33-3)
- Ethyl 3-bromo-5-chlorobenzoate (CAS 1095274-55-7)
- 2-Bromo-1-(5-chloro-2-methoxyphenyl)ethan-1-one (CAS 111841-05-5)
- Methyl 2-(2-Bromo-4-chlorophenyl)acetate (CAS 115871-49-3)
- Methyl 3-bromo-4-chloro-5-methylbenzoate (CAS 1160574-52-6)
- 1-(2-Bromo-4-methoxyphenyl)-2-chloroethan-1-one (CAS 1178445-77-6)
Recommended Standards
- methyl 2-bromo-2-(2-chlorophenyl)acetate (CAS 25270-30-2)
- Salbutamol Impurity 156 (CAS CATO-C4X-1176156)
- N-(2-Amino-4-bromophenyl)-2-chloroacetamide (CAS 854583-92-9)
- 2-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1165935-87-4)
- (E)-N'-(5-cyanopyrimidin-2-yl)-N-methoxyformimidamide (CAS 400085-18-9)
- 1-AZIDO-2-HYDROXY-3-TOSYLOXYPROPANE (CAS 168431-73-0)
- [4-(chlorodifluoromethoxy)phenyl]methanol (CAS 50823-88-6)
- 4,6-Dichloro-5-cyanopicolinic acid (CAS 861545-83-7)
- JWH 149 (CAS 548461-82-1)
- 2-(5-Chloro-2,4-difluorophenyl)acetic acid (CAS 1261632-58-9)
- 2-(2-Ethyl-1h-1,3-benzodiazol-1-yl)acetohydrazide (CAS 131717-37-8)
- Safflower Yellow (CAS 36338-96-2)
- 1-((3-Nitrophenyl)carbamoyl)piperidine-3-carboxylic acid (CAS 1036565-62-4)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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