2,2',3,6'-Tetrachlorobiphenyl,100 µg/mL,isooctane,1mL,

Purified asfalthenes from North Sea Oil, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no.

5-Nitroacenaphthene, 100µg/mL, Solvent-toluene, Unit 1ml, # of units-1, Cas.no. 602-87-9

Nicotinic acid, Stock solution system check EN12260