Internal & Surrogate Standard Back Catalog number: 97790 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3380.19-100-CY Diflufenican Price on request 675245 Picloram, 100 µg/ml, Acetonitrile, 5ml Price on request 70214 2-Methylnaphthalene Price on request