EPA Method 552.1 - Surrogate Standard Back Catalog number: 31057 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1340.12-100-T 4-Nitrobiphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 92-93-3 Price on request F342000 Finasteride, 50mg Price on request 11910.4-K-ME Morpholine,1000 µg/mL,MeOH,1mL, Price on request