Palbociclib Impurity 54 CAS CATO-C4X-112554
| CAS No. | CATO-C4X-112554 |
| Molecular Formula | C27H33Br2N7O3 |
| Molecular Weight | 663.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C27H33Br2N7O3, Palbociclib Impurity 54 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 663.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Palbociclib Impurity 54 (CAS CATO-C4X-112554) is a certified pharmaceutical impurity reference standard with the molecular formula C27H33Br2N7O3 and a molecular weight of 663.42 g/mol.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C27H33Br2N7O3 |
| Molecular Weight | 663.42 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 7 |
Related Palbociclib Standards
- Palbociclib impurity 132 (CAS CATO-C4X-1125132)
- Palbociclib N-Glucuronide (CAS CATO-C4X-112535)
- Palbociclib Impurity 102 (CAS CATO-C4X-1125102)
- Palbociclib Impurity 107 (CAS CATO-C4X-1125107)
- Palbociclib impurity 131 (CAS CATO-C4X-1125131)
- Palbociclib Impurity 19 (CAS 1941177-47-4)
- Palbociclib Impurity 10 (CAS CATO-C3D-1457)
- Palbociclib Impurity 104 (CAS 827022-35-5)
Recommended Standards
- 3-Acetylpyridine hypoxanthine dinucleotide (CAS 4002-09-9)
- 1-((2S,3S,4S,5R)-5-((((((((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)oxidophosphoryl)oxy)methyl)-3,4-dihydroxytetrahydrofuran-2-yl)-3-carbamoylpyridin-1-ium (CAS 108646-17-9)
- Clindamycin Impurity 98 (CAS 68225-59-2)
- α-Nicotinamide adenine dinucleotide (CAS 7298-93-3)
- Landiolol Impurity 79 (CAS CATO-C4X-262179)
- Lifitegrast Impurity 117 (CAS CATO-C4X-2409117)
- Pitolisant impurity 40 (CAS CATO-C4X-252040)
- (R)-Methyl 2-(pyrrolidin-3-yl)acetate hydrochloride (CAS 1024038-31-0)
- Epalrestat Impurity 23 (CAS CATO-C4X-223623)
- 5-Chloro-2-phenoxybenzoic acid (CAS 69199-63-9)
- 3-Bromo-4-fluorobenzenesulfonyl Chloride (CAS 631912-19-1)
- N,N-diisobutyl-3-methylbutanamide (CAS 14313-90-7)
- 2-(3-(((3-(Benzyloxy)-3-oxopropyl)amino)methyl)pyrrolidin-1-yl)acetic acid (CAS 1353947-19-9)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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