Crotoxyphos, 1000µg/ml in in hexane:acetone [9:1], 1ml

1,2,3,4-Tetraphenyl-1,3-cyclopentadiene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 15570-45-3

Sulfamethoxazole-d4 (benzene-d4),100 µg/mL,MeOH,1mL

2,4'-DDT-13C12,100 µg/mL,n-nonane,1mL,