Mono-(6-Hydroxy-2-propylheptyl)phthalate-13C2, 1,2 Back Catalog number: CLM-10313-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 90007 BTEX Standard Price on request 19042 EPA Method 508 Surrogate Standard Price on request PCB-SS-A20 Mass-Labelled PCB Solution , 1.2ml x 20ng/ml, nonane Price on request