N-Desmethyl Topotecan-d3 CAS 1217633-79-8
| CAS No. | 1217633-79-8 |
| Molecular Formula | - |
| Molecular Weight | 410.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
N-Desmethyl Topotecan-d3 (CAS 1217633-79-8), molecular formula C22H18D3N3O5 and molecular weight 410.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H18D3N3O5, N-Desmethyl Topotecan-d3 contains deuterium isotope labeling, a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 410.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C22H18D3N3O5 |
| Molecular Weight | 410.44 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Related N Standards
- N-Desmethyl Nitroso Trimebutine D9 (CAS CATO-C4X-185826)
- Desmethyl Cariprazine (CAS 839712-15-1)
- N-Desmethyl Topotecan (CAS 190710-79-3)
- Desmethyl Ranolazine (CAS 172430-45-4)
- Desmethyl Ranolazine-d5 (CAS 1329834-18-5)
- N Desmethyl Mifepristone D3 (CAS 104004-96-8 (Unlabeled))
- N-Desmethyl Trifluoperazine-d8 Dihydrochloride (CAS 1246814-84-5)
- N-Desmethyl Dextrorphan -β-D-O-Glucuronide (CAS 19153-89-0)
Recommended Standards
- Tris(2,6-dimethylphenyl) phosphate (CAS 121-06-2)
- Benzyl (2R,4S)-4-acetoxy-2-((6-fluoro-1H-indol-3-yl)methyl)pyrrolidine-1-carboxylate (CAS 1260251-23-7)
- 3,5-Bis(isopropyl)phenyl Diphenyl Phosphate (CAS 113765-39-2)
- 3-Isopropylphenyl 4-Propylphenyl Phenyl Phosphate (CAS 1391053-90-9)
- 3-(3-Hydroxytetrahydrothiophen-3-yl)propanoic acid (CAS 1508781-78-9)
- 2-[2-(1-Methyl-2-piperidinyl)ethoxy]-3-phenylpropylamine (CAS 883531-30-4)
- 1-(3-Bromobenzenesulfonyl)-pyrrolidin-3-ol (CAS 1410447-07-2)
- trans-2-Nitrocinnamic acid (CAS 612-41-9)
- 6-Azetidin-3-yl-2-methylpyrimidin-4-ol bis(trifluoroacetate) (CAS 2173088-86-1)
- 2-Methoxybenzimidamide (CAS 51818-19-0)
- 4-Chloro-3-methyl-1H-pyrazole (CAS 15878-08-7)
- Benzyl (2S,4S)-4-methyl-5-oxo-2-phenyloxazolidine-3-carboxylate (CAS 171860-41-6)
- (3R,4R)-N-Hydroxy-4-(4-((2-(trifluoromethyl)-1H-benzo[d]imidazol-1-yl)methyl)benzamido)tetrahydro-2H-pyran-3-carboxamide (CAS 503166-51-6)
- Immunstimulating Peptide, human (CAS 94773-24-7)
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