2,4-Dimethylaniline, certified, 0.5g

2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5

2,3,3',4,5'-Pentachlorobiphenyl ,100 µg/mL,isooctane,1mL,

D-(+)-3-Phenyllactic acid, 100mg