13C3-Caffeine, 100 µg/ml, Methanol, 1ml

Oxydemeton-methyl, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 301-12-2

Arochlor 5460 , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 11126-42-4

3ß,17ß(H),21ß(H)-3-Methylhopane, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 497938-80-4