Methyl 3-Bromo-5-chloro-4-methylbenzoate CAS 203573-07-3
| CAS No. | 203573-07-3 |
| Molecular Formula | C9H8BrClO2 |
| Molecular Weight | 263.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Methyl 3-Bromo-5-chloro-4-methylbenzoate (CAS 203573-07-3), 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, Methyl 3-Bromo-5-chloro-4-methylbenzoate 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 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), Methyl 3-Bromo-5-chloro-4-methylbenzoate 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.) | 2015 |
| Halogen Content | Cl/Br-containing |
Related Methyl 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 3-Bromo-4-chlorophenylacetate (CAS 960304-99-8)
- Methyl 4-(Bromomethyl)-3-chlorobenzoate (CAS 74733-30-5)
- Methyl 3-bromo-2-chloro-5-methylbenzoate (CAS 2092209-00-0)
- Methyl 4-bromo-2-(chloromethyl)benzoate (CAS 921220-04-4)
- 2-((2-Methoxybenzyl)amino)acetic acid (CAS 124589-79-3)
- (2S)-2-Amino-N,3-dimethyl-N-((1-methylpyrrolidin-3-yl)methyl)butanamide (CAS 1344971-82-9)
- 2-((2-Chlorophenoxy)methyl)pyrrolidine (CAS 883520-71-6)
- 1-Methoxy-4-phenylpyridin-1-ium tetrafluoroborate (CAS 63123-42-2)
- 2-(Cyclopropylsulfonyl)isonicotinic acid (CAS 1782791-12-1)
- Osimertinib Impurity 114 (CAS CATO-C4X-2045114)
- 4-Aminoquinoline-3-carbonitrile (CAS 36626-03-6)
- Ethyl 2,4-difluoronicotinate (CAS 1807176-77-7)
- N-(3-Amino-2-methylphenyl)-2-(4-chloro-3-methylphenoxy)acetamide (CAS 1020056-29-4)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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