Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended 0176.14-500-IO 2-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 8916-98-8 Price on request XA11940200AC 2,4-D 13C6, 100µg/ml in Acetone, 1ml Price on request 73216 Hydrocodone Price on request