Dolasetron Impurity 1 CAS CATO-C4X-18671
| CAS No. | CATO-C4X-18671 |
| Molecular Formula | C19H20N2O3 |
| Molecular Weight | 324.37 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 Dolasetron Impurity 1 (CAS CATO-C4X-18671), a pharmacopoeial impurity reference standard (molecular formula C19H20N2O3, MW 324.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C19H20N2O3, Dolasetron Impurity 1 contains a steroid 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 324.37 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).
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 | C19H20N2O3 |
| Molecular Weight | 324.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dolasetron Standards
- Dolasetron (CAS 115956-12-2)
- Dolasetron Impurity 2 (CAS 127951-99-9)
- Dolasetron Impurity 3 (CAS CATO-C4X-18673)
- Dolasetron Impurity 5 (CAS 115956-03-1)
- Dolasetron USP Related Compound A (CAS 115956-07-5)
- Dolasetron Impurity 4 (CAS CATO-C4X-18674)
- Dolasetron intermediate (CAS 7686-77-3)
- Dolasetron Mesylate (1224959) (CAS 878143-33-0)
Recommended Standards
- Acetylcysteine EP Impurity C (CAS 5545-17-5)
- Esmolol Impurity 68 (CAS CATO-C4X-189168)
- Tiopronin Impurity 1 (CAS 21269-37-4)
- Esmolol Impurity 92 (CAS CATO-C4X-189192)
- Buserelin EP Impurity E (CAS CATO-C4X-22125)
- Moxifloxacin impurity 181 (CAS 1363407-28-6)
- Benzylpenicillin Impurity 34 (CAS 56609-07-5)
- Ethyl 6-ethoxypyridazine-3-carboxylate (CAS 1795412-84-8)
- 7-(3,5-Dimethylphenyl)-7-oxoheptanoic acid (CAS 898765-48-5)
- 5-Bromo-6-methoxynicotinamide (CAS 1261079-59-7)
- 5-Chloro-1H-1,2,4-triazole-3-carbohydrazide (CAS 199292-15-4)
- Methyl N-(3-chlorophenyl)-N-[(4-methylphenyl)sulfonyl]glycinate (CAS 418806-87-8)
- 4-Amino-N-(2-methoxyphenyl)benzene-1-sulfonamide (CAS 19837-84-4)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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