Diosmin for system suitability, 5mg

Ciprofloxacin-d8, 2,5mg

3,4,5-Trimethylphenol, 100 µg/ml, Acetonitrile,

3,5,6-trichloro-2-pyridinol(4,5,6-13C3, 99%) cp 97%, 100µg/ml in Acetonitrile, 1,2ml