Everolimus Impurity 19 CAS CATO-C4X-112219
| CAS No. | CATO-C4X-112219 |
| Molecular Formula | C67H115NO15Si2 |
| Molecular Weight | 1230.80 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 Everolimus Impurity 19 (CAS CATO-C4X-112219), a pharmacopoeial impurity reference standard (molecular formula C67H115NO15Si2, MW 1230.80 g/mol) used for the identification and quantification of trace impurities in APIs.
Everolimus Impurity 19 (C67H115NO15Si2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C67H115NO15Si2 |
| Molecular Weight | 1230.80 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Everolimus Standards
- Everolimus Impurity 29 (CAS CATO-C4X-112229)
- Everolimus Impurity 23 (CAS CATO-C4X-112223)
- Everolimus Impurity 27 (CAS CATO-C4X-112227)
- Everolimus ATG 181 (CAS 1062645-51-5)
- Everolimus Impurity 24 (CAS CATO-C4X-112224)
- Everolimus Impurity 20 (CAS CATO-C4X-112220)
- Everolimus Impurity 28 (CAS CATO-C4X-112228)
- Everolimus Impurity 25 (CAS CATO-C4X-112225)
Recommended Standards
- Voclosporin Impurity 1 (CAS CATO-C4X-30651)
- 7-D-Glu-Terlipressin (CAS CATO-C4X-219337)
- ((R)-4-Hydroxy-4-methyl-Orn(TRITC)7)-Phalloidin (CAS 1926163-50-9)
- [8-L-aspartic acid,12-glycine]Terlipressin (CAS CATO-C4X-219312)
- Canagliflozin Impurity 101 (CAS CATO-C4X-1123101)
- Enzalutamide Impurity 37 (CAS 1705583-65-8)
- Belumosudil Impurity 43 (CAS 2121561-41-7)
- N-(1-(4-fluorophenyl)ethyl)thietan-3-amine (CAS 1781617-08-0)
- 1-(Naphthalen-1-ylmethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1111881-86-7)
- 4-[(4-Methoxyphenyl)methyl]-3-[1-(2-phenoxyacetyl)piperidin-4-yl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775340-39-0)
- Methyl 4-bromo-5-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole-3-carboxylate (CAS 2641466-07-9)
- Methyl 2-[4-(3,5-difluorophenyl)phenyl]acetate (CAS 1820716-60-6)
- 2-(4-(Chloromethyl)phenoxy)-6-methylpyrazine (CAS 921939-00-6)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com