EPA Method 8121 Internal Standard

N-Propionyl mesalazine-d5, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

2,4-D

2-Hydroxy-5,6,7,8-tetrahydro-9-methylcarbazole, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.