Quizalofop-P-Ethyl CAS 100646-51-3
| CAS No. | 100646-51-3 |
| Molecular Formula | C19H17ClN2O4 |
| Molecular Weight | 372.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Quizalofop-P-Ethyl is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Quizalofop-P-Ethyl (CAS 100646-51-3), molecular formula C19H17ClN2O4 and molecular weight 372.80 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Quizalofop-P-Ethyl (C19H17ClN2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 372.80 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), Quizalofop-P-Ethyl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H17ClN2O4 |
| Molecular Weight | 372.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Quizalofop Standards
Recommended Standards
- 2-[(4-Chlorophenyl)methyl]-4-(5-methyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H-pyrido[1,2-c]pyrimidine-1,3-dione (CAS 1775503-16-6)
- Tivozanib Impurity 24 (CAS CATO-C4X-340024)
- N-(adamantan-1-yl)-2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)acetamide (CAS 865658-04-4)
- Oxametacin (CAS 27035-30-9)
- Hydroxy Itraconazole-d8 (CAS CATO-C4X-149779)
- tert-Butyl (2-formyl-5-(trifluoromethyl)phenyl)carbamate (CAS 109133-94-0)
- N-((4-Hydroxytetrahydro-2H-pyran-4-yl)methyl)-3,3-diphenylpropanamide (CAS 1351605-33-8)
- Dapagliflozin Impurity 192 (CAS CATO-C4X-1138192)
- Methyl 4,6-dimethoxynicotinate (CAS 905563-73-7)
- 4-Cyclopropylpyrrolidin-2-one (CAS 126822-39-7)
- Sodium 8-nitronaphthalene-1,3,5-trisulfonate (CAS 916054-17-6)
- 1-Cyclooctyl-2,2-Difluoroethanone (CAS 127119-02-2)
- 3-(Benzyloxy)-5-methoxybenzenesulfonyl chloride (CAS 1393585-51-7)
- Osteoblast-Adhesive Peptide (CAS 193613-75-1)
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