Visomitin Impurity 2 CAS CATO-C4X-20822
| CAS No. | CATO-C4X-20822 |
| Molecular Formula | C36H44O2P |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Visomitin Impurity 2 (CAS CATO-C4X-20822) is a certified pharmaceutical impurity reference standard with the molecular formula C36H44O2PCl and a molecular weight of 575.17 g/mol.
Owing to organophosphorus functionality, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system, Visomitin Impurity 2 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 575.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C36H44O2P Cl |
| Molecular Weight | 575.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Visomitin Standards
Recommended Standards
- Noscapine impurity 3 (CAS 82-54-2)
- Posaconazole impurity 209 (CAS CATO-C4X-1208209)
- Hydroxychloroquine Impurity 46 (CAS CATO-C4X-183546)
- 2-[4,5-Dihydro-4-(phenylmethyl)-2-oxazolyl]pyrimidine (CAS 1616781-80-6)
- 4-(Chloromethyl)-1-(3-fluoro-2-methylphenyl)-1H-1,2,3-triazole (CAS 1250616-82-0)
- 2-((Diphenylphosphoryl)methyl)cyclohexanone (CAS 86488-93-9)
- 3,6-Dichlorocatechol (CAS 3938-16-7)
- Paroxetine HCl Anhydrous EP Impurity B (CAS 533-31-3)
- 1-Ethyl-4-((4-nitrophenyl)sulfonyl)piperazine (CAS 385403-85-0)
- Peptide 434 (CAS CATO-CPTD788434)
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