| CAS No. | 1263-89-4 |
| Molecular Formula | C23H45N5O14 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 713.71 g/mol gives Neomycin Sulfate EP Impurity E distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Neomycin Sulfate EP Impurity E (CAS 1263-89-4), a pharmacopoeial impurity reference standard (molecular formula C23H45N5O14H2O4S, MW 713.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H45N5O14H2O4S, Neomycin Sulfate EP Impurity E contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 713.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures Neomycin Sulfate 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.
| Molecular Formula | C23H45N5O14 H2O4S |
| Molecular Weight | 713.71 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |