Cefatrizine propylene glycol CRS CAS 57235-40-2
| CAS No. | 57235-40-2 |
| Molecular Formula | C18H18N6O5S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Cefatrizine propylene glycol CRS (CAS 57235-40-2), molecular formula C18H18N6O5S2C3H8O2 and molecular weight 538.59 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Cefatrizine propylene glycol CRS (C18H18N6O5S2C3H8O2) 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H18N6O5S2 C3H8O2 |
| Molecular Weight | 538.59 g/mol |
| Purity | 97%+ |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefatrizine Standards
Recommended Standards
- Methyl 1-amino-3-(hydroxymethyl)cyclobutane-1-carboxylate (CAS 1781296-93-2)
- N-(3-Bromo-5-methylpyridin-2-yl)acetamide (CAS 142404-83-9)
- 3-Methoxy-4-((4-methoxybenzyl)oxy)phenol (CAS 1206970-64-0)
- Thymalfasin Impurity 2 (CAS CATO-C4X-18982)
- 1-(2-Methylpyridin-3-yl)cyclopropane-1-carboxylic acid (CAS 1060806-17-8)
- 6-Nitro-2-propyl-1,3-benzoxazole (CAS 885949-60-0)
- 2,2-Dimethylhex-4-yn-3-one (CAS 71932-99-5)
- 2-Chloro-1-(2,5-dimethyl-1-phenyl-1h-pyrrol-3-yl)propan-1-one (CAS 742118-86-1)
- Methyl (S)-2-([1,1'-biphenyl]-4-yl)-2-aminopropanoate (CAS 1228543-00-7)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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