Internal Reference Standard Back Catalog number: 52187 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1660.8-K-IO 1,1,1,3-Tetrachlorooctane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 18088-13-6 Price on request 2543.20-10MG Amitriptyline hydrochloride Price on request 673814 Triclopyr, 10.0 µg/ml, Acetonitrile, 10ml Price on request