CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 20006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA20645000AL Benzo(e)pyrene, 100 µg/mL in Acetonitrile, 1ml Price on request M4H29 2',4',5'-Trichloro-4-[13C12]biphenylol, 1.2ml x 50ug/ml, toluene Price on request C20003100 PCB No. 31, certified, 25mg Price on request