Aztreonam impurity 69 CAS CATO-C4X-152269
| CAS No. | CATO-C4X-152269 |
| Molecular Formula | C5H8N2O5S |
| Molecular Weight | 208.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Aztreonam impurity 69 (CAS CATO-C4X-152269) is a certified pharmaceutical impurity reference standard with the molecular formula C5H8N2O5S and a molecular weight of 208.19 g/mol.
Owing to a carbohydrate-derived structure, an amide group, a sulfone group, Aztreonam impurity 69 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C5H8N2O5S |
| Molecular Weight | 208.19 g/mol |
| Purity | 97%+ |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Aztreonam Standards
- Aztreonam impurity 74 (CAS CATO-C4X-152274)
- Aztreonam impurity 76 (CAS CATO-C4X-152276)
- Aztreonam impurity 98 (CAS 71780-86-4)
- Aztreonam Impurity 1 (CAS 80082-65-1)
- Aztreonam Impurity 34 (CAS 80582-09-8)
- Aztreonam impurity 70 (CAS CATO-C4X-152270)
- Aztreonam impurity 103 (CAS 2304883-18-7)
- Aztreonam Impurity 4 (CAS 102507-85-7)
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