Aztreonam Impurity 20 CAS CATO-C4X-152220
| CAS No. | CATO-C4X-152220 |
| Molecular Formula | C19H31N9O10S2 |
| Molecular Weight | 609.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Aztreonam Impurity 20 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.
CATO supplies Aztreonam Impurity 20 (CAS CATO-C4X-152220), a pharmacopoeial impurity reference standard (molecular formula C19H31N9O10S2, MW 609.63 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Aztreonam Impurity 20 (C19H31N9O10S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C19H31N9O10S2 |
| Molecular Weight | 609.63 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 2 |
Related Aztreonam Standards
- Aztreonam Impurity 108 (CAS CATO-C4X-1522108)
- Aztreonam impurity 118 (CAS CATO-C4X-1522118)
- Aztreonam Impurity 2 (CAS CATO-C4X-15222)
- Aztreonam Impurity 23 (CAS CATO-C4X-152223)
- Aztreonam Impurity 45 (CAS CATO-C4X-152245)
- Aztreonam impurity 59 (CAS CATO-C4X-152259)
- Aztreonam impurity 60 (CAS CATO-C4X-152260)
- Aztreonam impurity 62 (CAS CATO-C4X-152262)
Recommended Standards
- CAS 2225148-49-0 (CAS 2225148-49-0)
- (R)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)]trimethylsilanyloxy)methyl]pyrrolidine (R)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)]trimethylsilyloxy)methyl]pyrrolidine (R)-|A,|A-Bis[3,5-bis(trifluoromethyl)phenyl]-2-pyrrolidinemethanol trimethylsilyl ether (R)-|A,|A-Bis[3,5-bis(trifluoromethyl)phenyl]prolinol trimethylsilyl ether 908303-26-4 (CAS 908303-26-4)
- (S)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)trimethylsilanyloxy)methyl]pyrrolidine (S)-2-[(Bis(3,5-bis(trifluoromethyl)phenyl)trimethylsilyloxy)methyl]pyrrolidine (S)-|A,|A-Bis[3,5-bis(trifluoromethyl)phenyl]-2-pyrrolidinemethanol trimethylsilyl ether (S)-|A,|A-[3,5-Bis(trifluoromethyl)phenyl]prolinol trimethylsilyl ether 848821-61-4 (CAS 848821-61-4)
- Aztreonam impurity 63 (CAS CATO-C4X-152263)
- Sulindac Impurity 90 (CAS 53933-60-1)
- Cefepime EP Impurity F (CAS CATO-C4X-11936)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
- C8 Dihydroceramide (d18:0/8:0) (CAS 145774-33-0)
- Mirogabalin Impurity N78 (CAS CATO-CP155178)
- N-Benzyl-N-methyl-4,5,6,7-tetrahydro-1H-pyrazolo-[4,3-c]pyridine-3-carboxamide hydrochloride (CAS 1220017-96-8)
- 8-Bromo-1,2,3,4-tetrahydro-2,7-naphthyridine (CAS 1393568-73-4)
- 4-Chloro-2-methoxy-5-nitro-benzoic acid methyl ester (CAS 109069-75-2)
- 1-(3-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine (CAS 2096334-12-0)
- Liraglutide Impurity 5 TFA Salt (CAS CATO-C4X-19925)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com