CLP Semi-Volatile Internal Standard Back Catalog number: 11009 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 58055 Cesium (Cs) Price on request 677915 Mefenacet, 100 µg/ml, Acetonitrile, 1ml Price on request C14126200 1,7-Heptanedicarboxylic acid (Azelaic Acid), 250mg Price on request