Tazobactam Impurity 25 CAS 89051-47-8
| CAS No. | 89051-47-8 |
| Molecular Formula | C21H20N4O3S |
| Molecular Weight | 408.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tazobactam Impurity 25.
As a process- or degradation-related impurity, Tazobactam Impurity 25 (CAS 89051-47-8, C21H20N4O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C21H20N4O3S, Tazobactam Impurity 25 contains a steroid core, 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 408.47 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 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.
As a certified reference material (CRM), Tazobactam Impurity 25 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 | C21H20N4O3S |
| Molecular Weight | 408.47 g/mol |
| Purity | >95% |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Tazobactam Standards
- Tazobactam Acid Impurity 34 (CAS 85573-73-5)
- Tazobactam Impurity 10 (CAS 87579-78-0)
- Tazobactam Impurity 34 (CAS CATO-C4X-120534)
- Tazobactam Impurity 35 (CAS 125949-72-6)
- Tazobactam Impurity 24 (CAS 89051-49-0)
- Tazobactam Acid Impurity 27 (CAS 74189-25-6)
- Tazobactam Impurity 36 (CAS CATO-C4X-120536)
- Tazobactam Impurity 7 (CAS CATO-C4X-12057)
Recommended Standards
- Acotiamide Impurity 39 (CAS 701197-05-9)
- Relebactam Impurity 149 (CAS CATO-C4X-2144149)
- Etoricoxib Impurity 32 (CAS 1421227-97-5)
- Relebactam Impurity 150 (CAS CATO-C4X-2144150)
- Lusutrombopag Impurity 63 (CAS CATO-C4X-208463)
- Acetylcysteine Impurity 32 (CAS 462-10-2)
- Doxorubicin Impurity 27 (CAS CATO-C4X-203327)
- 1H-Imidazole, 2-ethenyl-4,5-dihydro-, homopolymer, sulfate (CAS 30394-74-2)
- (1R,3S)-3-fluorocyclopentanamine;hydrochloride (CAS 2088965-72-2)
- (S)-1-(3-Pyridyl)ethylamine (CAS 27854-93-9)
- 2-((4-Methoxybenzyl)oxy)-5-(2-methylthiazol-4-yl)benzoic acid (CAS 1416347-36-8)
- (9H-Fluoren-9-yl)methyl (2-aminoethyl)carbamate (CAS 166410-32-8)
- isopropyl 3-amino-3-phenylpropanoate hydrochloride (CAS 100369-81-1)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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