25-Hydroxyvitamin D3-d6 (Dimethyl 26,27-d6)

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

1,2,8,9-Tetrachloro(13C12)dibenzo-p-dioxin, 1.2mL x 50ug/mL, toluene

2,2',3,4,4',6'-Hexabromodiphenyl ether, 1.2ml x 50ug/ml, nonane