EPA Method 508A DCB Stock Solution

1H-1,2,4-Triazole-1-acetic acid, 100mg

3,4-Dimethylphenol, 100 µg/ml, Methanol, 5ml

2-Butanethiol, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 513-53-1