Rapamycin Impurity 32 CAS CATO-C4X-174632
| CAS No. | CATO-C4X-174632 |
| Molecular Formula | C51H81NO14 |
| Molecular Weight | 932.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Rapamycin Impurity 32 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.
Rapamycin Impurity 32 (CAS CATO-C4X-174632) is a certified pharmaceutical impurity reference standard with the molecular formula C51H81NO14 and a molecular weight of 932.19 g/mol.
The molecular framework of Rapamycin Impurity 32 (C51H81NO14) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C51H81NO14 |
| Molecular Weight | 932.19 g/mol |
| Purity | ≥95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Rapamycin Standards
- Rapamycin Impurity 22 (CAS 185107-79-3)
- Rapamycin Impurity 10 (CAS 157054-84-7)
- Rapamycin Impurity 11 (CAS 159351-88-9)
- 33-Ethyl Rapamycin (CAS CATO-C4X-174617)
- Rapamycin Impurity 23 (CAS CATO-C4X-174623)
- Rapamycin Impurity 8 (CAS CATO-C4X-17468)
- Rapamycin Impurity 9 (CAS 500733-49-3)
- Rapamycin Impurity 12 (CAS 150821-39-9)
Recommended Standards
- 301845-97-6 Simocyclinone D8 (CAS 301845-97-6)
- Azithromycin EP Impurity H (CAS 612069-30-4)
- 1-(2,4,6-Trichlorophenyl)-3-(2-chloro-5-[a-(4-hydroxy-3-tert-butylphenoxy)-tetradecanamido]anilido)-4-(a-naphthylazo)-5-pyrazolone (CAS 63089-83-8)
- Fmoc-Tyr(PO3(MDPSE)2)-OH (CAS 158817-11-9)
- Semaglutide Impurity 2 (CAS CATO-C4X-22262)
- Isoniazid EP Impurity D (CAS 553-53-7)
- Donepezil Impurity 67 (CAS CATO-C4X-103967)
- Omadacycline impurity 18 (CAS CATO-C4X-285718)
- Methadone Impurity 6 (CAS 117449-78-2)
- 3-(4-Chlorophenyl)-1-[(3-methylphenyl)methyl]-6-(trifluoromethyl)-1,2,3,4-tetrahydropyrimidine-2,4-dione (CAS 866049-78-7)
- (3-(2,5-Difluorophenyl)isoxazol-5-yl)methanol (CAS 890934-18-6)
- 2-Chloro-5-[4-(trifluoromethyl)phenoxymethyl]pyridine (CAS 1039969-30-6)
- 1,1-Dimethyl-3,4-dihydronaphthalen-2(1H)-one (CAS 20027-76-3)
- Semaglutide Impurity 246 (CAS CATO-C4X-2226246)
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