Paclitaxel EP Impurity L CAS 92950-39-5
| CAS No. | 92950-39-5 |
| Molecular Formula | C49H53NO15 |
| Molecular Weight | 895.94 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Paclitaxel EP Impurity L under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
As a process- or degradation-related impurity, Paclitaxel EP Impurity L (CAS 92950-39-5, C49H53NO15) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Paclitaxel EP Impurity L (C49H53NO15) 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. 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 | C49H53NO15 |
| Molecular Weight | 895.94 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 1 |
Related Paclitaxel Standards
- Paclitaxel EP Impurity J (CAS 2757197-26-3)
- Paclitaxel Impurity 57 (CAS 1053697-17-8)
- Paclitaxel EP Impurity O (CAS 219783-77-4)
- Paclitaxel EP Impurity M (CAS 932042-85-8)
- Paclitaxel EP Impurity P (CAS 173101-56-9)
- Paclitaxel EP Impurity F (CAS 153083-53-5)
- Paclitaxel 13C [~1.0Mg/Ml](P) (In Solution) (CAS 379688-61-6)
- Paclitaxel-d5 (CAS 1129540-33-5)
Recommended Standards
- 10-Acetoacetyl Paclitaxel (CAS CATO-C4X-184255)
- Acetyltaxol, 2'-(As) (CAS 92950-40-8)
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- (1-Benzoyl-2-methylpropyl)methylbis(triphenylphosphine)platinum (CAS 1082886-91-6)
- Atosiban Impurity 95 (CAS CATO-C4X-229395)
- Tranilast impurity 6 (CAS 343783-68-6)
- Abiraterone Impurity 36 (CAS CATO-C4X-107036)
- Glycerol α,α-Diallyl Ether (CAS 17018-07-4)
- 5-(3-(Tert-butyl)-1-methyl-1h-1,2,4-triazol-5-yl)thiophen-2-amine (CAS 1339736-12-7)
- 2-[1-Butyl-3-(4-Fluorophenyl)-2-Methylindol-5-Yl]Oxy-2-Methylpropanoic Acid (CAS 76469-04-0)
- 4-Iodobicyclo[2.2.2]octane-1-carbaldehyde (CAS 94994-09-9)
- 2-(2,4-Dichlorophenyl)-2-methyl-4-propyl-1,3-dioxolane (CAS 83833-32-3)
- 3-(3,5-Difluorophenyl)-1-propene (CAS 79538-22-0)
- (10-31)Semaglutide (CAS CATO-C4X-2226283)
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