Ammonia as (NH4+) Back Catalog number: 50633 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675195 D6-Dimethoate, 100 µg/ml, Ethyl acetate, 1ml Price on request 3390.9-100 Endosulfan alcohol, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2157-19-9 Price on request 11670.12-100-IO 2,2',3-Trichlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request