EPA Method 8141/1657 Surrogate Standard

Group 3 PCB’s - Low Toxicity Congeners

all-trans 4-Keto Retinoic Acid, 5mg

2,2-Bis(chloromethyl)-1,3-propandiol bis[bis(2-chloroethyl) phosphate],50 µg/mL,toluene,1mL,