EPA Method 515.3 - Derivatized acids Back Catalog number: 30151 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8751.21-50-T 2,2-Bis[3,5-dibromo-4-(2,3-dibromopropoxy)phenyl]propane, 50µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 21850-44-2 Price on request ASTM-P-0135 System Performance Standard, in Heptane, 1x5ml Price on request R02191-W10ME10 Sweeteners - Mix 6, 10µg/ml in MeOH, 10ml Price on request