Metamifop CAS 256412-89-2
| CAS No. | 256412-89-2 |
| Molecular Formula | C23H18ClFN2O4 |
| Molecular Weight | 440.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Metamifop 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.
Metamifop (CAS 256412-89-2), molecular formula C23H18ClFN2O4 and molecular weight 440.85 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Metamifop is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.85 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C23H18ClFN2O4 |
| Molecular Weight | 440.85 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Recommended Standards
- Eldecalcitol Impurity 28 (CAS 189102-76-9)
- GDC-0994 (CAS 1453848-26-4)
- tert-Butyl (1S,4R)-6-((4-chloro-5-(trifluoromethyl)pyrimidin-2-yl)amino)-1,2,3,4-tetrahydro-1,4-epiminonaphthalene-9-carboxylate (CAS 942492-24-2)
- 3-Chloro-2-oxopropyl 2-(N-((4,6-dimethylpyrimidin-2-yl)carbamoyl)sulfamoyl)benzoate (CAS 1781241-33-5)
- 6-Chloro-3-hydroxy-2-(2-methoxyphenyl)quinazolin-4(3H)-one (CAS 338412-69-4)
- (R)-1-(3,4-Diethoxyphenyl)ethan-1-ol (CAS 1212340-56-1)
- 3-{[2-(2-chlorophenyl)-2-oxoethyl]carbamoyl}propanoic acid (CAS 1221724-63-5)
- 2-(2-Bromophenyl)propanenitrile (CAS 57775-10-7)
- Chloro[(1,2,5,6-η)-1,5-cyclooctadiene](η5-2,4-cyclopentadien-1-yl)ruthenium (CAS 97913-63-8)
- 5-(Benzenesulfonyl)-2-(propan-2-ylsulfanyl)pyrimidin-4-ol (CAS 478247-41-5)
- Ethyl 2-chloro-6-methoxyisonicotinate (CAS 106719-08-8)
- Acetic Acid-Phenyl Ester (CAS 122-79-2)
- Pantoprazole Impurity 75 (CAS CATO-C4X-139975)
- Peptide Impurity 09 X TFA Salt (CAS CATO-CPTD788809)
Why CATO?
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