2-Methylsulfonyl-4-trifluoromethyl benzoic acid Back Catalog number: 73516 Availability: In the manufacturer's stock Price on request - + Recommended 51136 Retention Time Verification Standard Price on request 53144 EPA 1638Mix A Price on request 11271.15-100-AN Nicosulfuron-d6 (dimethoxy-d6),100 µg/mL,acetonitrile,1mL, Price on request