Custom Biomarker Mix 0378.12 Carbazole 0615.27 17 alpha(H)-22,29,30-Trisnorhopane 0622.27 alpha alpha alpha (20R)-Cholestane 0643.28 alphaßß (20R,24S)-24-Methylcholestane 0609.29 alpha alpha alpha (20R,24R)-24-Ethylcholestane