2-Furoic acid

ISO 9377-2 Quality Control Standard of Mineral Oils A+B 1000 µg/mL in acetone (500 µg/mL of each A and B), 1x1mL, 5x1mL, 10x1mL 4000 µg/mL in acetone (2000 µg/mL of each A and B), 1x1mL, 5x1mL, 10x1mL 10 000 µg/mL in acetone, (5000 µg/mL of each A

Corn flour - Trace elements, 50g

Phenyl ether