QC Standard 1 Back Catalog number: 53084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 18000-0302-100AN1 Ciprofloxacin-HCl, 100ug/ml, 10ml in ACN Price on request 90842 Hydroquinone Price on request 0492.8-K-IO Di(2-thienyl)disulfide, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6911-51-9 Price on request