Group I Elements Starter Kit Back Catalog number: 52253 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9167.23-2,5MG Pholcodine-N'-oxide, neat, Solvent-neat, Unit 2,5mg, # of units-1, Cas.no. Price on request 8669.9-100-ME Imidacloprid,100 µg/mL,MeOH,1mL, Price on request DTPRP Tri-n-propyl phosphate-d21, 1.2ml x 50ug/ml, toluene Price on request