CLP Semi-Volatile Base/Neutral Surrogate Std Back Catalog number: 20006 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8910.14-100-T 5-Methyl-2,2',4,5'-tetrachlorodiphenylmethane Price on request 8203.16-10MG 2-Hydroxypyrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 78751-58-3 Price on request 673695 S421, 10 µg/ml, Ethyl acetate, 10ml Price on request