Internal Std., 4000µg/ml Methylene Chloride, 1ml Back Catalog number: 10009 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 11683.12-100-IO 2,2',3,3'-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 94961 Herbicide Methyl Derivatives Price on request 94830 PCB Congeners Price on request