2,4-D 13C6, 100µg/ml in Acetone, 1ml Back Catalog number: XA11940200AC Availability: In the manufacturer's stock Price on request - + Recommended 1399.12-K-IO Tri-n-butylphosphate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 126-73-8 Price on request 19030 EPA Method 507 - Performance Check Solution Price on request 8481.22-250MG Diltiazem hydrochloride, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 33286-22-5 Price on request