Spiking Standard 4 Back Catalog number: 58651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10018.12-50-T alfa-Hexabromocyclododecane,50 µg/mL,toluene,1mL, Price on request 9427.5-100MG Hexachlorocyclopentadiene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 77-47-4 Price on request E523002 Emodin-d4, 1mg Price on request