13C LABELED PCB MIXTURE PCBS-77/101/141/178 10UG/ML IN NONANE

4-Hydroxyphenylacetic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 156-38-7

1,4-Dichlorobenzene

Dimethylditetradecylammonium bromide, 100mg