Cefpirome Impurity 14 CAS CATO-C4X-120714
| CAS No. | CATO-C4X-120714 |
| Molecular Formula | C20H22N8O7S2 |
| Molecular Weight | 550.57 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 550.57 g/mol gives Cefpirome Impurity 14 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Cefpirome Impurity 14 (CAS CATO-C4X-120714), a pharmacopoeial impurity reference standard (molecular formula C20H22N8O7S2, MW 550.57 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C20H22N8O7S2, Cefpirome Impurity 14 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 550.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C20H22N8O7S2 |
| Molecular Weight | 550.57 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 2 |
Related Cefpirome Standards
- Cefpirome Impurity 15 (CAS CATO-C4X-120715)
- Cefpirome Impurity 49 (CAS CATO-C4X-120749)
- Cefpirome Impurity 46 (CAS CATO-C4X-120746)
- Cefpirome Impurity 53 (CAS CATO-C4X-120753)
- Cefpirome Impurity 48 (CAS CATO-C4X-120748)
- Cefpirome Impurity 5 (CAS CATO-C4X-12075)
- Cefpirome Impurity 4 (CAS CATO-C4X-12074)
- Cefpirome Impurity 9 (CAS 124667-21-6)
Recommended Standards
- Ibrutinib Impurity 142 (CAS CATO-C4X-1064142)
- N-(5-Fluoresceinyl)-L-carnitine-O-thiocarbamate (CAS 1258239-73-4)
- Vonoprazan Impurity 205 (CAS CATO-C4X-1020205)
- Pioglitazone Thiazolidinedione Ring-opened N-β-D-Glucuronide (CAS 1296832-76-2)
- Pyridoxine impurity 83 (CAS CATO-C4X-187783)
- Cefixime Impurity 114 (CAS CATO-C4X-1139114)
- Cephalexin Impurity 28 (CAS 142975-48-2)
- Sodium 5-bromo-4-chloro-1H-indol-3-yl phosphate hydrate (CAS 304656-10-8)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-acetamidophenyl)propanoic acid (CAS 1217801-44-9)
- 1,2-Diethynylbenzene (CAS 21792-52-9)
- ethyl 4,4,4-trifluoro-3-phenylbut-2-enoate (CAS 10075-06-6)
- 6-Bromo-3-chloro-2-nitroaniline (CAS 1823903-57-6)
- Pyrraline (CAS 74509-14-1)
- Semaglutide impurity 88 (CAS CATO-C4X-222688)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com