Retention Time Marker Standard Back Catalog number: 93609 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10569.16-100MG 4,4'-Diisocyanato-3,3'-dimethylbiphenyl Price on request 685521 Bifenazate-diazene, 100 µg/ml, Ethyl acetate, 1m Price on request 19097 EPA Method 602 - Surrogate Standard Price on request