Formaldehyde-DNPH Level 2 (0.5ug/mL)

1,2,4-Trimethylnaphthalene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 2717-42-2

Imbentin-N/050 (n= ca 2-8)

2,2',3,3',4,5,5',6-Octachlorobiphenyl