Potassium (K) Back Catalog number: 56019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1980.17-10-IO 2-(4-Nonylphenoxy)acetic acid isomer mixture,10 µg/mL,isooctane,1mL, Price on request 54370 MBAS-Alkyl Price on request 8711.12-5MG 2,3,3',4',5,6-Hexachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 74472-44-9 Price on request