beta-Carotene, 250mg

Nitro-PAH Mixture 1 1106,14 9-Nitroanthracene [602-60-8] 1278,16 2-Nitrofluoranthene [13177-29-2] 0025,16 3-Nitrofluoranthene [892-21-7] Concentration: 1000 ppm in Toluene Units: 1mL ampoules

Primary Drinking Water Metals

EPA 1653 Chloroguaiacols 8 Analytes, each 100µg/mL in methanol; unit: 1x1mL 4-Chloroguaiacol [16766-30-6] 3,4-Dichloroguaiacol 4,5-Dichloroguaiacol 4,6-Dichloroguaiacol 3,4,5-Trichloroguaiacol 3,4,6-Trichloroguaiacol 4,5,6-Trichloroguaiacol Tetrach