Surrogate Mix Back Catalog number: 91986 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2127.12-K-IO Arochlor 1248 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 12672-29-6 Price on request X9086 3,3’-Dimethylbenzidine Price on request 40024 EPA Method 630/630.1 Stock Solution #1 Price on request