Chemical Compounds | Structurea | Formula | CAS number | Purity | Supplier |
---|---|---|---|---|---|
Ciprofloxacin hydrochloride (reference standard) | C17H19ClFN3O3 | 85,721–33-1 | Pharmaceutical secondary standard; certified reference material | Sigma-Aldrich | |
Methanol | CH4O | 67–56-1 | ≥99.9% (Chromasolv, for HPLC) | Honeywell (Riedel-de Haën) | |
Acetonitrile | C2H3N | 75–05-8 | ≥99.9% (Chromasolv gradient, for HPLC, gradient grade) | Honeywell (Riedel-de Haën) | |
Phosphoric acid | H3O4P | 7664-38-2 | 98% (ACS reagent, reagent ISO) | Sigma-Aldrich | |
Triethylamine | C6H15N | 121–44-8 | 99% | Scharlau | |
Amoxicillin trihydrate | C16H19N3O5S .3 H2O | 61,336–70-7 | Pharmaceutical Secondary Standard; Certified Reference Material | Sigma-Aldrich | |
Potassim clavulanate | C8H8NO5K | 61,177–45-5 | VETRANAL™ Analytical standard | Sigma-Aldrich |