EPA Method 1666 Standard #1

1,2-Benzisothiazol-3(2H)-one, 100mg

2,5-Dimethylbenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 16587-48-7

Omeprazole-d3 (benzimidazole-4,6,7-d3),1000 µg/mL,MeOH,1mL