Indoxacarb Impurity 2 CAS 135656-94-9
| CAS No. | 135656-94-9 |
| Molecular Formula | C17H13ClFN3O2 |
| Molecular Weight | 345.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| 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.
CATO supplies Indoxacarb Impurity 2 (CAS 135656-94-9), a pharmacopoeial impurity reference standard (molecular formula C17H13ClFN3O2, MW 345.76 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C17H13ClFN3O2, Indoxacarb Impurity 2 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 345.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C17H13ClFN3O2 |
| Molecular Weight | 345.76 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Indoxacarb Standards
Recommended Standards
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- 2-Methyl-4,5-dihydro-2H-pyrrolo[3,4-c]pyridine (CAS 343269-87-4)
- 2-(2-Fluorobenzamido)thiophene-3-carboxamide (CAS 773140-09-3)
- 3-(4-Methoxyphenoxy)-1-methyl-1,2-dihydroquinoxalin-2-one (CAS 338774-64-4)
- 3-Ethoxy-4-[(2-fluorobenzyl)oxy]benzaldehyde (CAS 423724-00-9)
- Carboxymethyl chitosan (CAS 83512-85-0)
- Ethyl 5-(4-chlorophenyl)-3-(1,3-dioxo-2,3-dihydro-1H-inden-2-ylidene)-4,6-dioxo-octahydropyrrolo[3,4-c]pyrrole-1-carboxylate (CAS 321522-12-7)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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