Paclitaxel-d5 (Benzoyloxy) CAS 1261254-56-1
| CAS No. | 1261254-56-1 |
| Molecular Formula | - |
| Molecular Weight | 858.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Paclitaxel-d5 (Benzoyloxy) (CAS 1261254-56-1) is a high-purity analytical reference standard with the molecular formula C47H46D5NO14 and a molecular weight of 858.94 g/mol.
Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Paclitaxel-d5 (Benzoyloxy) is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 858.94 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.
As a certified reference material (CRM), Paclitaxel-d5 (Benzoyloxy) 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.
Physical & Chemical Properties
| Molecular Formula | C47H46D5NO14 |
| Molecular Weight | 858.94 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) | 25.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Paclitaxel Standards
- Paclitaxel-d5 (CAS 1129540-33-5)
- Paclitaxel 13C [~1.0Mg/Ml](P) (In Solution) (CAS 379688-61-6)
- Paclitaxel EP Impurity F (CAS 153083-53-5)
- Paclitaxel Photodegradant (CAS 146139-03-9)
- Paclitaxel EP Impurity E (CAS 105454-04-4)
- Paclitaxel (CAS 33069-62-4)
- Paclitaxel EP Impurity P (CAS 173101-56-9)
- Paclitaxel EP Impurity C (CAS 153415-45-3)
Recommended Standards
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Why CATO?
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