MCPA Back Catalog number: 79523 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9069.7-K-IP 4,6-Dichloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 16766-31-7 Price on request 95275 PCB Mix 3.0 ppb Price on request 673668 Piperonyl butoxide, 100 µg/ml, Ethyl acetate, 5m Price on request