EPA Method 8270C Pesticide Mix #20 Back Catalog number: 91003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9698.29-10MG 5 alpha(H)-Cholestan-3ß-ol acetate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. Price on request 681820 4,4'-DDA, 100mg Price on request 677478 trans,trans-2,4-Hexadien-1-ol, 250mg Price on request