Lipid Classification Scheme

Sterol Lipids [ST] classes and subclasses

Sterols [ST01]
        Cholesterol and derivatives [ST0101]
        Cholesteryl esters [ST0102]
        Ergosterols and C24-methyl derivatives [ST0103]
        Stigmasterols and C24-ethyl derivatives [ST0104]
        C24-propyl sterols and derivatives [ST0105]
        Gorgosterols and derivatives [ST0106]
        Furostanols and derivatives [ST0107]
        Spirostanols and derivatives [ST0108]
        Furospirostanols and derivatives [ST0109]
        Cycloartanols and derivatives [ST0110]
        Calysterols and derivatives [ST0111]
        Cardanolides and derivatives [ST0112]
        Bufanolides and derivatives [ST0113]
        Brassinolides and derivatives [ST0114]
        Solanidines and alkaloid derivatives  [ST0115]
  
Steroids [ST02]
        C18 steroids (estrogens) and derivatives [ST0201]
        C19 steroids (androgens) and derivatives [ST0202]
        C21 steroids (gluco/mineralocorticoids, progestogins) and derivatives [ST0203]
  
Secosteroids [ST03]
        Vitamin D2 and derivatives [ST0301]
        Vitamin D3 and derivatives [ST0302]
        Vitamin D4 and derivatives [ST0303]
        Vitamin D5 and derivatives [ST0304]
        Vitamin D6 and derivatives [ST0305]
        Vitamin D7 and derivatives [ST0306]
  
Bile acids and derivatives [ST04]
        C22 bile acids, alcohols, and derivatives [ST0405]
        C23 bile acids, alcohols, and derivatives [ST0406]
        C24 bile acids, alcohols, and derivatives [ST0401]
        C25 bile acids, alcohols, and derivatives [ST0407]
        C26 bile acids, alcohols, and derivatives [ST0402]
        C27 bile acids, alcohols, and derivatives [ST0403]
        C28 bile acids, alcohols, and derivatives [ST0404]
        C29 bile acids, alcohols, and derivatives [ST0408]
  
Steroid conjugates [ST05]
        Glucuronides [ST0501]
        Sulfates [ST0502]
        Glycine conjugates [ST0503]
        Taurine conjugates [ST0504]
  
Other [ST00]