Aztreonam impurity 79 CAS CATO-C4X-152279
| CAS No. | CATO-C4X-152279 |
| Molecular Formula | C19H28N8O8S2 |
| Molecular Weight | 560.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 560.60 g/mol gives Aztreonam impurity 79 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Aztreonam impurity 79 (CAS CATO-C4X-152279, C19H28N8O8S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Aztreonam impurity 79 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 560.60 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.
As a certified reference material (CRM), Aztreonam impurity 79 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.
Physical & Chemical Properties
| Molecular Formula | C19H28N8O8S2 |
| Molecular Weight | 560.60 g/mol |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 2 |
Related Aztreonam Standards
- Aztreonam Impurity 39 (CAS CATO-C4X-152239)
- Aztreonam Impurity 49 (CAS CATO-C4X-152249)
- Aztreonam Impurity 51 (CAS CATO-C4X-152251)
- Aztreonam impurity 75 (CAS CATO-C4X-152275)
- Aztreonam impurity 80 (CAS CATO-C4X-152280)
- Aztreonam impurity 81 (CAS CATO-C4X-152281)
- Aztreonam Impurity 93 (CAS CATO-C4X-152293)
- Aztreonam impurity 95 (CAS CATO-C4X-152295)
Recommended Standards
- Ceftazidime EP Impurity H (CAS 1354396-23-8)
- Sarecycline Impurity 4 (CAS CATO-C4X-27984)
- Z-Phe-Gly-Phe-Gly-OH (CAS 252351-91-0)
- 3-(Imidazo[1,2-a]pyrazin-3-ylethynyl)-4-isopropyl-N-(3-((4-methylpiperazin-1-yl)methyl)-5-(trifluoromethyl)phenyl)benzamide (CAS 2241813-33-0)
- Flurbiprofen Impurity 162 (CAS 861795-19-9)
- Milnacipran impurity 25 (CAS 2386090-46-4)
- Finerenone Impurity 86 (CAS CATO-C4X-288086)
- 1-(2-Ethylhexanoyl)azetidine-3-carboxylic acid (CAS 1342367-92-3)
- TCEP-d12 Hydrochloride (CAS 1189959-10-1)
- 2-Chloro-N-((2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)methyl)nicotinamide (CAS 477885-88-4)
- 3-Ethynyl-5-fluorophenol (CAS 1594072-20-4)
- 5-Methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 444144-39-2)
- 8,9-Didehydro-7-hydroxydolichodial (CAS 97856-19-4)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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