Tamsulosin Impurity 66 CAS CATO-C4X-118766
| CAS No. | CATO-C4X-118766 |
| Molecular Formula | C30H41N3O8S2 |
| Molecular Weight | 635.79 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tamsulosin Impurity 66 (CAS CATO-C4X-118766), a pharmacopoeial impurity reference standard (molecular formula C30H41N3O8S2, MW 635.79 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C30H41N3O8S2, Tamsulosin Impurity 66 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 635.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C30H41N3O8S2 |
| Molecular Weight | 635.79 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Tamsulosin Standards
- Tamsulosin Impurity 67 (CAS CATO-C4X-118767)
- Tamsulosin Impurity 14 (CAS CATO-C4X-118714)
- Tamsulosin Impurity 46 (CAS CATO-C4X-118746)
- Tamsulosin Impurity 58 (CAS CATO-C4X-118758)
- Tamsulosin Impurity 68 (CAS 1027854-97-2)
- Tamsulosin Impurity 64 (CAS CATO-C4X-118764)
- Tamsulosin Impurity 65 (CAS CATO-C4X-118765)
- Tamsulosin Impurity 74 (CAS CATO-C4X-118774)
Recommended Standards
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