(S)-a-Acetolactic Acid Potassium Salt, 5mg

d2 C29 alpha alpha alpha (20R)-Ethylcholestane, 10µg/mL in Osooctane, 1ml

2,3,3',4',6-Pentachlorobiphenyl (110)

ISO 18857-1 4-n-Nonylphenol (ring13C6), Internal standard 1 ng/µL, in acetone, 5mL