EPA Method 8040A Analytes Mix “B” Back Catalog number: 80412 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0099.5-100MG Methyl-n-butylsulfide, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 628-29-5 Price on request D295700 4-O-Desmethyl 4-O-Ethyl Trimethoprim, 25mg Price on request 11807.23-K-ME Levomepromazine maleate,1000 µg base/mL ,MeOH,1mL, Price on request