Ceftriaxone EP Impurity E CAS 58909-56-1
| CAS No. | 58909-56-1 |
| Molecular Formula | C12H13N5O5S2 |
| Molecular Weight | 371.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ceftriaxone EP Impurity E under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Ceftriaxone EP Impurity E (CAS 58909-56-1) is a certified pharmaceutical impurity reference standard with the molecular formula C12H13N5O5S2 and a molecular weight of 371.39 g/mol.
Structurally, Ceftriaxone EP Impurity E (C12H13N5O5S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 371.39 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C12H13N5O5S2 |
| Molecular Weight | 371.39 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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 |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Ceftriaxone Standards
- Ceftriaxone Impurity 46 (CAS CATO-C4X-116346)
- Ceftriaxone Impurity 43 (CAS CATO-C4X-116343)
- Ceftriaxone Impurity 47 (CAS CATO-C4X-116347)
- Ceftriaxone Impurity 4 (CAS 959246-33-4)
- Ceftriaxone EP Impurity D (CAS 80756-85-0)
- Ceftriaxone Sodium EP Impurity B(Cefotaxime EP Impurity E)（Cefodizime Impurity D） (CAS 66340-33-8)
- Ceftriaxone Impurity 31 (CAS CATO-C4X-116331)
- Ceftriaxone Impurity 9 (CAS CATO-C4X-11639)
Recommended Standards
- Nafamostat impurity 99 (CAS CATO-C4X-133299)
- Ilaprazole Impurity 236 (CAS CATO-C4X-1130236)
- Isradipine (CAS 75695-93-1)
- Azilsartan Impurity 131 (CAS CATO-C4X-1096131)
- Tropicamide Impurity 13 (CAS CATO-C4X-215013)
- Methylene blue /Methylthioninium Chloride Impurity 39 (CAS CATO-C4X-189639)
- Sildenafil Impurity 245 (CAS CATO-C4X-1128245)
- Inositol 1,2,6-trisphosphate (Ins(1,2,6)P3) (CAS 28841-62-5)
- 4-((2-Ethylpiperidin-1-yl)methyl)aniline (CAS 842970-08-5)
- 4-Chloro-3-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)benzoic acid (CAS 186320-11-6)
- 4-Methyl-1,2,3-thiadiazole-5-carbonyl chloride 4-methyl-[1,2,3]thiadiazole-5-carbonyl chloride 5-Chlorocarbonyl-4-methyl-1,2,3-thiadiazole 59944-65-9 (CAS 59944-65-9)
- 7-(2-Chlorophenyl)-7-oxoheptanoic acid (CAS 898792-63-7)
- 4-Amino-5-(hydroxymethyl)-1H-pyrazole-3-carboxamide (CAS 22283-31-4)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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 18665070610 / Nicole.chen@cato-chem.com