EPA Method 8121 Internal Standard Back Catalog number: 81203 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2801.18-K-ME Diethylstilbestrol,1000 µg/mL,MeOH,1mL, Price on request 71655 2,6-Dichloroanisole Price on request 8928.17-100-ME Iopamidol, 100µg/ml in MeOH, 1ml Price on request