1. Ergotamine Group:
ergotamine C33H35O5N5
ergotaminine

ergosine C30H37O5N5
ergosinine

2. Ergotoxine Group:
ergocristine C35H39O5N5
ergocristinine

ergokryptine C32H41O5N5
ergokryptinine

ergocornine C31H39O5N5
ergocorninine

3. Ergobasine Group:
ergobasine C19H23O2N3
ergobasinine