Palbociclib Impurity 7 CAS CATO-C3D-1456
| CAS No. | CATO-C3D-1456 |
| Molecular Formula | C23H37N5O4 |
| Molecular Weight | 447.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Palbociclib Impurity 7 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.
Palbociclib Impurity 7 (CAS CATO-C3D-1456) is a certified pharmaceutical impurity reference standard with the molecular formula C23H37N5O4 and a molecular weight of 447.57 g/mol.
The molecular framework of Palbociclib Impurity 7 (C23H37N5O4) is characterized by a flavonoid core, 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.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C23H37N5O4 |
| Molecular Weight | 447.57 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Palbociclib Standards
- Palbociclib Impurity 41 (CAS CATO-C4X-112541)
- Palbociclib Impurity N87 (CAS 2205035-04-5)
- Palbociclib (CAS 571190-30-2)
- Palbociclib Impurity 11 (CAS CATO-C4X-112511)
- Palbociclib Impurity 157 (CAS CATO-C4X-1125157)
- Palbociclib Impurity 159 (CAS 2204368-66-9)
- Palbociclib Impurity 22 (CAS 1376615-91-6)
- Palbociclib Impurity 20 (CAS CATO-C3D-1542)
Recommended Standards
- N-(4-Aminobutyl)-N-(2-(phenylsulfonyl)ethyl)isoquinoline-5-sulfonamide (CAS 651307-44-7)
- Tirofiban Impurity 16 (CAS 2250244-30-3)
- 5-Benzyloxy Propafenone (CAS 200434-70-4)
- Selexipag Impurity 5 (CAS 2287345-22-4)
- Lansoprazole Impurity 60 (CAS CATO-C4X-111360)
- Empagliflozin impurity 197 (CAS CATO-C4X-1065197)
- Ezetimibe Impurity 59 (CAS CATO-C4X-109859)
- 1-(2-Chloropyrimidin-4-yl)piperidin-3-ol (CAS 945895-48-7)
- Estriol EP Impurity B (Estrone) (CAS 53-16-7)
- 3-Chloro-4-methyl-5-nitrobenzene-1-sulfonamide (CAS 861560-71-6)
- N-Methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-amine (CAS 948593-73-5)
- 3,3,3-Trifluoropropyl 3,3,3-trifluoropropanoate (CAS 1211835-76-5)
- (4-Butylcyclohexyl)methanamine (CAS 1019356-55-8)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
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