EPA Method 1664 - Oil & Grease (Sonicate) Back Catalog number: 91958A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9747.10-K-ME Ecgonine methyl ester, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 72502 Bromomethyl methyl ether Price on request 3199.13-K-IO 12-cis-Tridecenoic acid , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6006-06-0 Price on request