Para-phenylenediamine,neat,neat,100mg,

Doxylamine succinate,1000 µg base/mL,MeOH,1mL,

3-Chloro-1,2-propandiol-dibehenate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

EPA Method 552.1 - Surrogate Standard