Difenoconazole CAS 119446-68-3
| CAS No. | 119446-68-3 |
| Molecular Formula | C19H17Cl2N3O3 |
| Molecular Weight | 406.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Difenoconazole (C19H17Cl2N3O3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Difenoconazole (CAS 119446-68-3), molecular formula C19H17Cl2N3O3 and molecular weight 406.26 g/mol, is a CATO reference standard with documented purity and traceability.
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 manufactures Difenoconazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H17Cl2N3O3 |
| Molecular Weight | 406.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Difenoconazole Standards
Recommended Standards
- Lornoxicam Impurity 21 (CAS CATO-C4X-201621)
- (E)-N-(3-bromo-4-methylphenyl)-3-(3,4,5-trimethoxyphenyl)acrylamide (CAS 329778-42-9)
- Canagliflozin Impurity 92 (CAS CATO-C4X-112392)
- (E)-N-(4-bromo-3-methylphenyl)-3-(2,3,4-trimethoxyphenyl)acrylamide (CAS 329778-45-2)
- 2-Chloro-1-methyl-1H-benzo[d]imidazole (CAS 1849-02-1)
- tert-Butyl 3-(hydroxymethyl)-4H-furo[2,3-c]pyrrole-5(6H)-carboxylate (CAS 1823776-29-9)
- (3S)-1-methanesulfonylpyrrolidin-3-ol (CAS 1568031-54-8)
- 3-(1,2,4-Oxadiazol-3-yl)aniline hydrochloride (CAS 1052406-10-6)
- Efinaconazole Impurity 26 (CAS 2055038-63-4)
- 3-(2-Chloro-4-pyrimidinyl)-1-(phenylsulfonyl)indole (CAS 882562-58-5)
- 7-Bromo-3,5-difluoroquinolin-2-amine (CAS 2410639-79-9)
- Indometacin Impurity 27 (CAS CATO-C4X-147027)
- Guanidine (CAS 113-00-8)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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