Sodium Perchlorate (18O4) Back Catalog number: 54022 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0158.15-500-IO 2,4,7-Trimethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 216983-03-8 Price on request 683258 Thiamethoxam Metabolite CGA 353968, 25mg Price on request S-4035-K-10IO Diphenylsulfide in isooctane, Blank Units: 5x1mL ampoules Price on request