EPA Method 531.1 Individual Analytes Back Catalog number: 31241 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1330.22-100-TX5 Dibenz[a,h]anthracene-d14, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 13250-98-1 Price on request 12056.12-100-ME (+/-)-Clenbuterol-d9 (trimethyl-d9),100 µg/mL,MeOH,1mL, Price on request C0879 4-Chloro-2-nitrobenzoic Acid, >98%, 25g Price on request