Tamsulosin Impurity 67 CAS CATO-C4X-118767
| CAS No. | CATO-C4X-118767 |
| Molecular Formula | C30H41N3O8S2 |
| Molecular Weight | 635.79 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tamsulosin Impurity 67 (CAS CATO-C4X-118767) is a certified pharmaceutical impurity reference standard with the molecular formula C30H41N3O8S2 and a molecular weight of 635.79 g/mol.
Based on its molecular formula C30H41N3O8S2, Tamsulosin Impurity 67 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 66 (CAS CATO-C4X-118766)
- 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
- Fexofenadine Impurity 36 (CAS CATO-C4X-179436)
- Rosuvastatin Impurity 121 (CAS 1714147-51-9)
- Fexofenadine Impurity 37 (CAS CATO-C4X-179437)
- Brexpiprazole impurity 116 (CAS CATO-C4X-1131116)
- Relugolix Impurity 166 (CAS CATO-C4X-2429166)
- Capecitabine Impurity 47 (CAS CATO-C4X-102447)
- Testosterone Impurity 32 (CAS CATO-C4X-243232)
- N,n,n,n-tetrabenzylmethanediamine (CAS 58288-30-5)
- Ethyl 2-(6-nitrobenzo[d]oxazol-2-yl)acetate (CAS 295345-83-4)
- Rivaroxaban Impurity 89 (CAS 19532-96-8)
- Risdiplam Impurity 4 (CAS CATO-C4X-30124)
- (S,R,S)-AHPC-phenol-C4-NH2 (dihydrochloride) (CAS 2376990-26-8)
- tert-Butyl 3-(pyrazin-2-yloxy)piperidine-1-carboxylate (CAS 954228-88-7)
- Peptide Impurity 12 (CAS CATO-CPTD788812)
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