1,4-Naphthoquinone Back Catalog number: X9138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8641.12-50-NN 1,3-Dichlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 0977.27-25MG d2 C27 ??? (20R)-Cholestane,neat,neat,25mg Price on request 2612.24-200-T Tetracosahydrocoronene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 54171-94-7 Price on request