Rapamycin Impurity 29 CAS CATO-C4X-174629
| CAS No. | CATO-C4X-174629 |
| Molecular Formula | C51H79NO13 |
| Molecular Weight | 914.17 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.
Rapamycin Impurity 29 (CAS CATO-C4X-174629) is a certified pharmaceutical impurity reference standard with the molecular formula C51H79NO13 and a molecular weight of 914.17 g/mol.
Based on its molecular formula C51H79NO13, Rapamycin Impurity 29 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 914.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C51H79NO13 |
| Molecular Weight | 914.17 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Rapamycin Standards
- Rapamycin Impurity 12 (CAS 150821-39-9)
- Rapamycin Impurity 19 (CAS 144293-63-0)
- Rapamycin Impurity 21 (CAS 151945-42-5)
- Rapamycin Impurity 24 (CAS CATO-C4X-174624)
- Rapamycin Impurity 25 (CAS 151945-42-5 (racemic))
- Rapamycin Dehydration Impurity (CAS CATO-C4X-174627)
- Rapamycin Impurity 31 (CAS CATO-C4X-174631)
- Rapamycin Aldehyde Degrades Impurity (CAS CATO-C4X-174628)
Recommended Standards
- Seco Rapamycin (CAS 147438-27-5)
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