EPA Method 500 Series Internal Std #4

4-Acetylpsilocin fumarate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no.

Vanadium (V)

2-Chloro-1,3-propanediol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 497-04-1