Cyhalothrin Impurity 1 CAS 76703-65-6
| CAS No. | 76703-65-6 |
| Molecular Formula | C23H19ClF3NO3 |
| Molecular Weight | 449.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cyhalothrin Impurity 1.
CATO supplies Cyhalothrin Impurity 1 (CAS 76703-65-6), a certified reference material (molecular formula C23H19ClF3NO3, MW 449.85 g/mol) for analytical method development and quality control.
Cyhalothrin Impurity 1 (C23H19ClF3NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C23H19ClF3NO3 |
| Molecular Weight | 449.85 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Cyhalothrin Standards
Recommended Standards
- [1S-[1α(R),3α(Z)]]-3-(2-Chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcyclopropanecarboxylic Acid Cyano(3-phenoxyphenyl)methyl Ester(Cyhalothrin Isomer) (CAS 76703-64-5)
- (S) [cyano-(3-phenoxyphenyl)methyl](1R,3R)-3-[(1E)-2-chloro-3,3,3-trifluoroprop-1-en-1-yl]-2,2-dimethylcyclopropanecarboxylate (CAS 329902-58-1)
- Lambda-Cyhalothrin (CAS 91465-08-6)
- (1S)-trans-Y-Cyhalothrin (CAS 76703-68-9)
- 4-{5-bromo-1H-pyrazolo[3,4-b]pyridin-1-yl}-1-methylpiperidine (CAS 1016850-95-5)
- Tert-butyl3-methylpyrrolidine-1-carboxylate (CAS 1256818-37-7)
- [2-(4-Chlorophenyl)-2-cyclopentylethyl]amine hydrobromide (CAS 1211483-99-6)
- 5-Bromo-N-(2H-tetrazol-5-yl)furan-2-carboxamide (CAS 304885-05-0)
- 4-(But-3-en-1-yl)-1,1'-biphenyl (CAS 61396-60-9)
- Methyl 4-((6-(3,5-dimethyl-1H-pyrazol-1-yl)pyrimidin-4-yl)oxy)benzoate (CAS 413620-32-3)
- Nimodipine Impurity 12 (CAS CATO-C4X-138512)
- Mirogabalin Impurity 118 (CAS 1644251-52-4)
- 2-(7-Bromo-1H-indazol-3-yl)acetic acid (CAS 944899-28-9)
- D-[Asp]9-Semaglutide (CAS CATO-CPTD788631)
Why CATO?
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