Vincristine Impurity 19 CAS CATO-C4X-208919
| CAS No. | CATO-C4X-208919 |
| Molecular Formula | C47H61N4O10 |
| Molecular Weight | 842.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Vincristine Impurity 19 (CAS CATO-C4X-208919), a pharmacopoeial impurity reference standard (molecular formula C47H61N4O10, MW 842.01 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Vincristine Impurity 19 (C47H61N4O10) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 19.5, corresponding to approximately 19 ring(s) or double-bond equivalent(s). With a molecular weight of 842.01 g/mol, it falls into the high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C47H61N4O10 |
| Molecular Weight | 842.01 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 |
| Degree of Unsaturation (DBE) | 19.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Vincristine Standards
- Vincristine Impurity N1 (CAS 947527-73-3)
- Vincristine EP Impurity A (CAS CATO-C4X-20891)
- Vincristine Impurity 15 (CAS CATO-C4X-208915)
- Vincristine Impurity 20 (CAS CATO-C4X-208920)
- Vincristine Impurity 21 (CAS CATO-C4X-208921)
- Vincristine Impurity 18 (CAS CATO-C4X-208918)
- Vincristine EP Impurity G (CAS CATO-C4X-20897)
- Vincristine EP Impurity H (CAS 865-21-4)
Recommended Standards
- Fmoc-Lys (biotin-PEG4)-OH (CAS 1334172-64-3)
- Josamycin EP Impurity J (CAS CATO-C4X-301512)
- Succinyl-(Asp6,N-Me-Phe8)-Substance P (6-11) (CAS 106128-89-6)
- Josamycin EP Impurity E (Platenomycin A1) (CAS 40615-47-2)
- Tofacitinib Impurity 239 (CAS CATO-C4X-1079239)
- Baclofen impurity 22 (CAS 55591-37-2)
- Benazepril EP Impurity B(Mixture of Enantiomers) (CAS 88372-39-8)
- 3-(2-Iodo-6-methoxyphenoxy)propanal (CAS 1241505-36-1)
- 1-(2-Amino-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethanone (CAS 1339927-28-4)
- 2-{4-[(2,5-dimethylphenyl)methyl]-3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carbonyl}benzoic acid (CAS 861212-95-5)
- 4-(4-Fluoro-3-methylphenyl)butan-1-amine (CAS 1216050-02-0)
- 1-(2-Morpholinoethyl)-3-phenylthiourea (CAS 57723-02-1)
- 5-Bromo-2-(pyridin-4-ylmethyl)pyridazin-3(2h)-one (CAS 2251053-62-8)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
Why CATO?
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