S421, 10 µg/ml, Ethyl acetate, 10ml

4-Methyl-2-pentanone-DNPH

2,3,5,6-Tetrachlorobiphenyl, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 33284-54-7

0.10M Sodium Hydroxide (NaOH)