beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

EPA Method 300.0 Anions Mix A, 1000 µg/mL in Water, 1ml

1-(3-Chloro-4-methylphenyl)-3-methylurea, 100mg

2-Bromodibenzothiophene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 22439-61-8