Permethrin CAS 52645-53-1
| CAS No. | 52645-53-1 |
| Molecular Formula | C21H20Cl2O3 |
| Molecular Weight | 391.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Permethrin (CAS 52645-53-1), a certified reference material (molecular formula C21H20Cl2O3, MW 391.29 g/mol) for analytical method development and quality control.
Permethrin (C21H20Cl2O3) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C21H20Cl2O3 |
| Molecular Weight | 391.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
Related Permethrin Standards
- trans-Permethrin Solution, 10 mg/L, 2 x 5 ml (CAS 51877-74-8)
- Trans-Permethrin (CAS 61949-77-7)
- Cis-Permethrin (CAS 61949-76-6)
- cis-Permethrin Solution, 10 mg/L, 2 x 5 ml (CAS 54774-45-7)
- Permethrin-d5 (cis/trans mixture) (CAS 1794760-19-2)
- trans-Permethrin D6 (dimethyl D6) (CAS 82523-59-9)
- Permethrin EP Impurity H (CAS 56860-12-9)
- Permethrin Impurity 11 (CAS 60066-84-4)
Recommended Standards
- tert-Butyl 3-((5-bromo-3-formylpyridin-2-yloxy)methyl)pyrrolidine-1-carboxylate (CAS 1203499-20-0)
- 5-(4-Bromophenyl)-1-ethyl-2-((4-fluorobenzyl)thio)-1H-imidazole (CAS 1206991-25-4)
- Selexipag Impurity 53 (CAS CATO-C4X-196153)
- 5-Bromo-N-((2,4-dimethylthiazol-5-yl)methyl)-2-methoxybenzenesulfonamide (CAS 1396860-41-5)
- 2-(4-(Difluoromethyl)-5-fluoro-6-methylpyridin-2-yl)acetonitrile (CAS 1807059-14-8)
- (4-((4-(Tert-butoxycarbonyl)piperazin-1-yl)methyl)-3-fluorophenyl)boronic acid (CAS 1704064-00-5)
- 3-Acetamido-N-(5-chloro-4-((4-chlorophenyl)(cyano)methyl)-2-methylphenyl)-4-methylbenzamide (CAS 1158623-26-7)
- 2-((5-(4-Chlorophenyl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)-N-(2,6-dichlorophenyl)acetamide (CAS 476485-97-9)
- EPZ031686, >98% (HPLC) (CAS 1808011-22-4)
- 4-Amino-6-fluoropyridin-3-ol (CAS 1227602-47-2)
- (S)-2-((tert-Butoxycarbonyl)amino)-2-(pyridin-3-yl)acetic acid (CAS 300372-37-6)
- 5-Bromo-N-methyl-N-((tetrahydrofuran-3-yl)methyl)pyridin-2-amine (CAS 1423378-97-5)
- 3-Chloropropiophenone(2-d2) (CAS 34236-34-5)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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