Internal Standard Back Catalog number: 93185 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681394 Bromoxynil-methyl ether, 50mg Price on request 682049 Fumonisin B2, 50 µg/ml, Acetonitrile/Water, 1ml Price on request M325660 Methyl Paraben, 10g Price on request