EPA Method 539Mix #1, 100µg/ml in MeOH, 1ml Back Catalog number: 96884 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 677431 Tributyl phosphate, 1ml Price on request 3914.16-100-ME Crotaline, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 315-22-0 Price on request 98511 Endrin Price on request