PCB No. 31, certified, 25mg Back Catalog number: C20003100 Availability: In the manufacturer's stock Price on request - + Recommended S-4160-100-10HX Analytical Standard for n-Alkanes 1mL Use 100µg/mL in hexane as a working standard n-C10-C40 + Pristane Price on request 9168.23-5MG Pholcodine-N,N'-dioxide, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. Price on request 679091 Flame-Retardant-Mix 4, 100 µg/ml, Methanol, 5ml Price on request