Irinotecan Impurity 51 CAS 2944102-98-9
| CAS No. | 2944102-98-9 |
| Molecular Formula | C33H33N3O6 |
| Molecular Weight | 567.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 567.63 g/mol gives Irinotecan Impurity 51 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Irinotecan Impurity 51 (CAS 2944102-98-9), a pharmacopoeial impurity reference standard (molecular formula C33H33N3O6, MW 567.63 g/mol) used for the identification and quantification of trace impurities in APIs.
Irinotecan Impurity 51 (C33H33N3O6) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Irinotecan Impurity 51 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 | C33H33N3O6 |
| Molecular Weight | 567.63 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 3 |
Related Irinotecan Standards
- Irinotecan EP Impurity H (CAS 1608617-71-5)
- Irinotecan Impurity 38 (CAS 143490-54-4)
- Irinotecan EP Impurity A (CAS 103816-16-6)
- Irinotecan Lactone Impurity (CAS 143490-53-3)
- Irinotecan Impurity 29 (CAS CATO-C4X-166729)
- Irinotecan Impurity 28 (CAS CATO-C4X-166728)
- Irinotecan (CAS 97682-44-5)
- Irinotecan EP Impurity L (CAS 1255644-71-3)
Recommended Standards
- Benzyl 7-(3,4-dimethoxyphenyl)-4-(4-(methoxycarbonyl)phenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 494194-22-8)
- Cefcapene Pivoxil (CAS 105889-45-0)
- 5-O-[Bis(4-methoxyphenyl)phenylmethyl]-2-deoxy-N-methyladenosine (CAS 98056-69-0)
- (E)-Cefcapene Pivoxil (CAS CATO-C4X-182410)
- Dapagliflozin Impurity 122 (CAS CATO-C4X-1138122)
- Suzetrigine Impurity 31 (CAS CATO-C4X-336931)
- Nicardipine Impurity 39 (CAS CATO-C4X-171039)
- N-(3-Bromobenzofuran-2-yl)benzamide (CAS 1277175-86-6)
- N-Butyl-1-(2-fluoroethyl)-4-methyl-1H-pyrazol-5-amine hydrochloride (CAS 1856101-88-6)
- 1601AF 2-(4-Benzyl-1-piperazino)-5-bromo-benzaldehyde 883512-03-6 C18H19BrN2O (CAS 883512-03-6)
- 1-(Adamantan-1-yl)butan-1-amine (CAS 60196-91-0)
- 2-(2-Fluorophenyl)-6-methyl-3-oxo-2,3-dihydropyridazine-4-carboxylic acid (CAS 1431729-14-4)
- Vonoprazan Impurity 168 (CAS CATO-C4X-1020168)
- Tirzepatide Impurity 46 (CAS CATO-C4X-324046)
Why CATO?
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