Aztreonam impurity 74 CAS CATO-C4X-152274
| CAS No. | CATO-C4X-152274 |
| Molecular Formula | C6H12N2O4S |
| Molecular Weight | 208.24 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 208.24 g/mol gives Aztreonam impurity 74 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Aztreonam impurity 74 (CAS CATO-C4X-152274), a pharmacopoeial impurity reference standard (molecular formula C6H12N2O4S, MW 208.24 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Aztreonam impurity 74 (C6H12N2O4S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 208.24 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), Aztreonam impurity 74 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 | C6H12N2O4S |
| Molecular Weight | 208.24 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 | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Aztreonam Standards
- Aztreonam impurity 69 (CAS CATO-C4X-152269)
- 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)
Recommended Standards
- Lanthionine (CAS 922-55-4)
- Tinidazole Impurity 8 (CAS 140165-55-5)
- Lanthionine (DL- and meso- mixture) (CAS 922-55-4（L-Lanthionine）)
- 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)propan-1-ol (CAS 1000540-71-5)
- Everolimus Impurity 44 (CAS 159351-77-6)
- Minoxidil Impurity 69 (CAS CATO-C4X-170069)
- Nintedanib Impurity 172 (CAS CATO-C4X-1814172)
- 4-(4-Chlorophenyl)-2-(cyclohexylsulfanyl)-4-oxobutanoic acid (CAS 328263-32-7)
- 2-Bromo-5-(difluoromethyl)-4-methyl-3-nitropyridine (CAS 1805244-11-4)
- 3-(3,4-Dimethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 5585-67-1)
- (1s,3s)-1-bromo-3-methoxycyclobutane (CAS 2044705-32-8)
- 4,5,6,7-Tetrahydro-2H-isoindole-1-carboxylic acid (CAS 204068-75-7)
- (E,E)-3,5-Di-O-caffeoylquinic acid (CAS 89919-62-0)
- Ganirelix 1-4 peptide (CAS 208599-57-9)
Why CATO?
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