CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 20006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3403.10-100-AN Fenthion, 100μg/mL in Acetonitrile, 1ml Price on request 56064 Gadolinium (Gd) Price on request 79167 Heptachlor Price on request