Methyl 2-chloro-5-fluoro-4-methylbenzoate CAS 1095005-98-3
| CAS No. | 1095005-98-3 |
| Molecular Formula | C9H8ClFO2 |
| Molecular Weight | 202.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Methyl 2-chloro-5-fluoro-4-methylbenzoate (CAS 1095005-98-3) is a high-purity analytical reference standard with the molecular formula C9H8ClFO2 and a molecular weight of 202.61 g/mol.
Based on its molecular formula C9H8ClFO2, Methyl 2-chloro-5-fluoro-4-methylbenzoate contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 202.61 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.
Physical & Chemical Properties
| Molecular Formula | C9H8ClFO2 |
| Molecular Weight | 202.61 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.) | 1989 |
| Halogen Content | F/Cl-containing |
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Recommended Standards
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- Leucokinin II H-Asp-Pro-Gly-Phe-Ser-Ser-Trp-Gly-NH2 (CAS 104821-31-0)
- cis-Methyl-3-(aminomethyl)-3-fluorocyclobutane-1-carboxylate (CAS 2580204-65-3)
- 5-(4-(Hydroxymethyl)phenyl)furan-2-carboxylic acid (CAS 1365988-43-7)
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- 2-{4h,5h,6h,7h-thieno[3,2-c]pyridin-5-yl}aniline (CAS 926210-81-3)
- [3-31]-Semaglutide D (Sodium salt) (CAS CATO-C4X-2226119)
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