CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 21016 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2602.16-200-T 1,2,3,3a,4,5-Hexahydropyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 5385-37-5 Price on request 15900-2820-100AN5 Imazamethabenz-methyl, 100µg/ml in AL, 5ml Price on request 66104 PCB No. 104, 100µg/ml in Isooctane, 1ml Price on request