EPA Method 507/525 Analyte Mix #1 Back Catalog number: 30082 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675889 Tulathromycin, 10mg Price on request 2534.12-25MG (2RS)-2-(4-n-Propylphenyl)propanoic acid, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 3585-47-5 Price on request 0089.7-1ML 1-Heptanethiol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 1639-09-4 Price on request