Aztreonam impurity 89 CAS CATO-C4X-152289
| CAS No. | CATO-C4X-152289 |
| Molecular Formula | C13H19N5O6S |
| Molecular Weight | 373.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Aztreonam impurity 89 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.
CATO supplies Aztreonam impurity 89 (CAS CATO-C4X-152289), a pharmacopoeial impurity reference standard (molecular formula C13H19N5O6S, MW 373.38 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C13H19N5O6S, Aztreonam impurity 89 contains a nitrogen-containing heterocyclic scaffold, 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 373.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C13H19N5O6S |
| Molecular Weight | 373.38 g/mol |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Aztreonam Standards
- Aztreonam USP RC B(Open-ring Desulfated Aztreonam) (CAS 102586-36-7)
- Aztreonam Impurity 43 (CAS CATO-C4X-152243)
- Aztreonam impurity 65 (CAS CATO-C4X-152265)
- Aztreonam Impurity 116 (CAS CATO-C4X-1522116)
- Aztreonam impurity 110 (CAS 1255912-99-2)
- Aztreonam USP RC D (CAS 102579-59-9)
- Aztreonam impurity 66 (CAS CATO-C4X-152266)
- Aztreonam impurity 55 (CAS CATO-C4X-152255)
Recommended Standards
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- Ceftazidime Impurity 81 (CAS CATO-C4X-121281)
- Rosuvastatin Impurity 208（RR:SS=1:1） (CAS CATO-C4X-1169208)
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- Posaconazole Impurity 11 (CAS 159811-30-0)
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- 858934-75-5 3-{[(Naphthalen-1-yl)oxy]methyl}pyrrolidine DTXSID90663067 (CAS 858934-75-5)
- (4-Methyl-3-sulfamoylphenyl)boronic acid (CAS 866758-50-1)
- N-(2-Fluorobenzyl)-2-(pyrazine-2-carboxamido)oxazole-4-carboxamide (CAS 1396886-72-8)
- Tert-butyl n-(1,2-dithiolan-4-yl)carbamate (CAS 1053178-96-3)
- 2-(Methyldiphenylphosphoranylidene)-1-phenylethanone (CAS 57395-88-7)
- ((Cys31,Nva34)-Neuropeptide Y (27-36))2 (CAS 172997-92-1)
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