Aztreonam Impurity 58 CAS CATO-C4X-152258
| CAS No. | CATO-C4X-152258 |
| Molecular Formula | C19H29N5O14S2 |
| Molecular Weight | 615.59 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 Aztreonam Impurity 58.
Aztreonam Impurity 58 (CAS CATO-C4X-152258) is a certified pharmaceutical impurity reference standard with the molecular formula C19H29N5O14S2 and a molecular weight of 615.59 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Aztreonam Impurity 58 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 615.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H29N5O14S2 |
| Molecular Weight | 615.59 g/mol |
| Purity | ≥90% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Aztreonam Standards
- Aztreonam impurity 94 (CAS CATO-C4X-152294)
- Aztreonam Impurity 108 (CAS CATO-C4X-1522108)
- Aztreonam impurity 118 (CAS CATO-C4X-1522118)
- Aztreonam Impurity 2 (CAS CATO-C4X-15222)
- Aztreonam Impurity 20 (CAS CATO-C4X-152220)
- Aztreonam Impurity 23 (CAS CATO-C4X-152223)
- Aztreonam Impurity 45 (CAS CATO-C4X-152245)
- Aztreonam impurity 59 (CAS CATO-C4X-152259)
Recommended Standards
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- Cefixime Impurity 105 (CAS CATO-C4X-1139105)
- Paclitaxel EP Impurity N (CAS 27548-93-2)
- Cefaclor Impurity 57 (CAS CATO-C4X-127057)
- Ixazomib Impurity 9 (CAS 1378314-08-9)
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- 2-[4-(chloromethyl)-1,3-thiazol-2-yl]-n,n-dimethylacetamide hydrochloride (CAS 1170979-24-4)
- Allo-Thr7-Tirzepatide (CAS CATO-CPTD788933)
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