Surrogate Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-23SSS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3215.18-K-IO 6-cis-Octadecenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 593-39-5 Price on request 59941 Hexavalent Chromium (Cr 6+) Price on request 673479 Azoxystrobin, 100 µg/ml, Ethyl acetate, 5ml Price on request