4-Chloro-2-(methoxycarbonyl)anisole CAS 33924-48-0
| CAS No. | 33924-48-0 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-2-(methoxycarbonyl)anisole (CAS 33924-48-0), a certified reference material (molecular formula C9H9ClO3, MW 200.62 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9ClO3, 4-Chloro-2-(methoxycarbonyl)anisole contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 200.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 4-Chloro-2-(methoxycarbonyl)anisole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1966 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- 2-(Aminomethyl)benzofuran-6-amine (CAS 165737-06-4)
- Lasmiditan Impurity 4 (CAS 103640-16-0)
- 4-(Acetylamino)-3-fluorobenzenesulphonyl fluoride (CAS 486424-35-5)
- Posaconazole impurity 250 (CAS CATO-C4X-1208250)
- Ethyl 9H-xanthene-9-carboxylate (CAS 7401-03-8)
- 2-Bromo-1-(5-chlorofuran-2-yl)ethan-1-one (CAS 887588-42-3)
- Fibrinopeptide B (human) (CAS 36204-23-6)
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