EPA Method 525 Surrogate Standard Back Catalog number: 93971 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0848.22-100-IO 20-Methyl-5 alpha(H)-pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5737-19-9 Price on request 59603 ICP Mix Price on request 2250.18-10-AN alpha-Zearalenol Price on request