Aztreonam Impurity 116 CAS CATO-C4X-1522116
| CAS No. | CATO-C4X-1522116 |
| Molecular Formula | C16H19N3O5S |
| Molecular Weight | 365.40 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 365.40 g/mol gives Aztreonam Impurity 116 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Aztreonam Impurity 116 (CAS CATO-C4X-1522116, C16H19N3O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Aztreonam Impurity 116 (C16H19N3O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 365.40 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C16H19N3O5S |
| Molecular Weight | 365.40 g/mol |
| Purity | 95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| 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 89 (CAS CATO-C4X-152289)
- Aztreonam USP RC D (CAS 102579-59-9)
- Aztreonam impurity 66 (CAS CATO-C4X-152266)
- Aztreonam impurity 110 (CAS 1255912-99-2)
- Aztreonam impurity 55 (CAS CATO-C4X-152255)
Recommended Standards
- Cephalexin Impurity 19 (CAS CATO-C4X-126119)
- Sultamicillin Impurity 10 (CAS CATO-C4X-188610)
- Cephalexin Impurity 13 (CAS 1323247-65-9)
- Bumetanide Impurity 15 (CAS CATO-C4X-198615)
- N-Nitroso Paroxetine Impurity G (CAS CATO-C4X-103579)
- Vonoprazan Impurity 116 (CAS CATO-C4X-1020116)
- Difelikefalin Impurity 12 (CAS 2219351-45-6)
- n-Cyclopropyl-4-(3,4-dichlorophenyl)thiazol-2-amine (CAS 1197972-64-7)
- 3-(3-Bromophenyl)-2-methylpropanoic acid (CAS 1183524-10-8)
- 4-Methyl-1-piperazinepropanoic acid methyl ester (CAS 33544-40-0)
- Eniluracil (CAS 59989-18-3)
- 2-(2-(sec-Butylamino)pyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352525-49-5)
- 4-Isopropoxy-3-methoxybenzoic acid (CAS 3535-33-9)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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