EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3838.21 1-Monooleoylglycerol: See product 3645.21, , Solvent-, Unit , # of units-, Cas.no. Price on request 679445 Dieldrin, 100 µg/ml, Methanol, 1ml Price on request 674578 Hexachlorophene, 250mg Price on request