Tazobactam EP Impurity B CAS 120701-87-3
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 120701-87-3 |
| Molecular Formula | C7H12N4O4S |
| Molecular Weight | 248.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Tazobactam EP Impurity B (CAS 120701-87-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C7H12N4O4S. Molecular weight: 248.26 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C7H12N4O4S |
| Molecular Weight | 248.26 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Tazobactam Standards
- Tazobactam Impurity 15 (CAS CATO-C4X-120515)
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- Tazobactam Impurity 13 (CAS CATO-C4X-120513)
- Tazobactam Impurity 41 (CAS 95813-88-0)
- Tazobactam Impurity 6 (CAS CATO-C4X-12056)
- Tazobactam Impurity 43 (CAS 904671-24-5)
- Tazobactam (CAS 89786-04-9)
Recommended Standards
- (2R,4R)-5,5-Dimethyl-2-hydroxy-4-phenyl-1,3,2-dioxaphosphorinan 2-oxide (4R)-2-Hydroxy-5,5-dimethyl-4-phenyl-1,3,2-dioxaphosphorinan 2-oxide (R)-(-)-2-Hydroxy-5,5-dimethyl-4-phenyl-1,3,2-dioxaphosphorinane 2-oxide 98674-80-7 (CAS 98674-80-7)
- Cefuroxime impurity 104 (CAS CATO-C4X-1245104)
- 3277-27-8 AR-1H6285 acetamide, n-[4-[[bis(2-hydroxyethyl)amino]sulfonyl]phenyl]- (CAS 3277-27-8)
- Bendamustine Impurity 28 HCl (CAS CATO-C4X-127128)
- Iloperidone Impurity 5 (CAS 19417-90-4)
- Hydroxy(pyridin-4-yl)methanesulfonic acid (CAS 4872-28-0)
- 1-(4-Methoxybenzyl)-1H-pyrazole-4-carboxylic acid (CAS 1105039-93-7)
- 7,7-dimethyl-6,8-dioxaspiro[3.5]nonan-2-ol (CAS 141352-52-5)
- Candesartan Cilexetil Impurity 41 (CAS CATO-C4X-123441)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com