N-Nitroso Tamsulosin Impurity (Mixture of Isomers) CAS CATO-C3D-5990
| CAS No. | CATO-C3D-5990 |
| Molecular Formula | C20H27N3O6S |
| Molecular Weight | 437.51 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.
N-Nitroso Tamsulosin Impurity (Mixture of Isomers) (CAS CATO-C3D-5990) is a certified pharmaceutical impurity reference standard with the molecular formula C20H27N3O6S and a molecular weight of 437.51 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, N-Nitroso Tamsulosin Impurity (Mixture of Isomers) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), N-Nitroso Tamsulosin Impurity (Mixture of Isomers) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H27N3O6S |
| Molecular Weight | 437.51 g/mol |
| Purity | >90% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related N Standards
- N-Nitroso Cloxacillin Impurity 34 (CAS CATO-C4X-159734)
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- N-Nitroso Cinacalcet Impurity 4 (CAS CATO-C4X-105974)
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Recommended Standards
- Ethyl 2-((5-(2-(1H-benzo[d]imidazol-2-yl)ethyl)-4-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetate (CAS 38911-92-1)
- Edoxaban Impurity 13 (CAS 767625-11-6)
- Aleglitazar (racemate) (CAS 475479-24-4)
- Tamsulosin impurity 55 (CAS 2892260-31-8)
- Sitafloxacin impurity 72 (CAS CATO-C4X-115572)
- Ethacridine Lactate Impurity 15 (CAS 74859-51-1)
- Ceftizoxime Impurity 39 (CAS 26531-82-8)
- 1-(1,2-oxazol-3-yl)ethan-1-one (CAS 88511-37-9)
- 4-Chloro-5-(difluoromethyl)-2-methylpyridine (CAS 1803709-25-2)
- Methyl 3-(2-benzyl-4-(difluoromethyl)-6-oxo-2,6-dihydro-7H-pyrazolo[3,4-b]pyridin-7-yl)propanoate (CAS 1018164-54-9)
- 4-Chloro-1-nitroacridin-9(10H)-one (CAS 13161-88-1)
- 4-(Methylsulfanyl)-2-propanamidobutanoic acid (CAS 52811-70-8)
- 2-(Bromomethyl)-6-(difluoromethyl)-4-methoxy-3-nitropyridine (CAS 1806988-38-4)
- Semaglutide Impurity 82 (CAS CATO-C4X-222682)
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