Permethrinic acid-methyl ester CAS 61898-95-1
| CAS No. | 61898-95-1 |
| Molecular Formula | C9H12Cl2O2 |
| Molecular Weight | 223.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 223.10 g/mol gives Permethrinic acid-methyl ester distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Permethrinic acid-methyl ester (CAS 61898-95-1), a certified reference material (molecular formula C9H12Cl2O2, MW 223.10 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, Permethrinic acid-methyl ester is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 223.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C9H12Cl2O2 |
| Molecular Weight | 223.10 g/mol |
| Purity | >95% |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Cl-containing |
Related Permethrinic Standards
Recommended Standards
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