Ceftiofur-d3 CAS 2673269-87-7
| CAS No. | 2673269-87-7 |
| Molecular Formula | - |
| Molecular Weight | 526.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ceftiofur-d3 (CAS 2673269-87-7) is a high-purity analytical reference standard with the molecular formula C19H14D3N5O7S3 and a molecular weight of 526.58 g/mol.
Ceftiofur-d3 (C19H14D3N5O7S3) contains deuterium isotope labeling, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C19H14D3N5O7S3 |
| Molecular Weight | 526.58 g/mol |
| Purity | >95% |
| 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) | 15.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 3 |
Related Ceftiofur Standards
- Ceftiofur-d3 Sodium Salt (CAS 104010-37-9 (unlabelled))
- Ceftiofur Impurity 15 (CAS CATO-C4X-158117)
- Ceftiofur Impurity 2 (CAS 120962-17-6)
- Ceftiofur Impurity 3 (CAS 120882-20-4)
- Ceftiofur (CAS 80370-57-6)
- Ceftiofur Impurity 12 (CAS CATO-C4X-158112)
- Ceftiofur Impurity 11 (CAS CATO-C4X-158111)
- Ceftiofur Impurity 14 (CAS CATO-C4X-158114)
Recommended Standards
- Cinepazide Impurity 9 (CAS 1352050-81-7)
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- spiro[3.3]heptane-2-carbonitrile (CAS 2105526-91-6)
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- (E)-N-Cyclohexyl-2-(cyclohexylimino)acetamide (CAS 5319-56-2)
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Why CATO?
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