Spermine-d20, 1mg Back Catalog number: S680512 Manufacturer: TORONTO RESEARCH CHEMICALS Availability: In the manufacturer's stock Price on request - + Recommended 679892 o-Toluidine, 100 µg/ml, Acetonitrile, 1ml Price on request 9180.13-K-ME (+/-)-Ketamine hydrochloride, 1000µg base/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1867-66-9 Price on request 95227 EPA Method 525 Internals & Surrogates Price on request