Direct Black 38, certified, 0.1g

3-(4-tert-Butylphenyl)isobutyraldehyde, 250mg

EPA 606 Control Sample Mixture 6 Analytes, each concentration as listed in acetone; units: 5x1mL, 1x5mL 1224.4 Bis(2-ethylhexyl) phthalate [117-81-7] 500µL/mL 1227.19 Benzyl butyl phthalate [85-68-7] 100µL/mL 1226.16 D

Phenylglyoxylic acid, 100mg