Spike Sample Standard 3 Back Catalog number: 52031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9258.6-100-DRIED Kojic acid, 100µg/mL, Solvent-dried down, Unit 1mL, # of units-1, Cas.no. 501-30-4 Price on request 3504.6-100-CY Tecnazene Price on request 70716 Ioxynil Price on request