Chlorohyssopifolin A

Formula : C19-H24-Cl2-O7
CAS : 37006-36-3 

Chlorinated sesquiterpene lactone obtained from two species of Compositae (Centaurea hyssopifolia Vahl & Centaurea linifolia Vahl).

Chlorohyssopifolin B

Formula : C15-H19-Cl-O5
CAS : 38290-03-08 

Chlorinated sesquiterpene lactone from two species of Compositae (Centaurea hyssopifolia Vahl & Centaurea linifolia Vahl).

Chlorohyssopifolin C

Formula : C19-H23-Cl-O7
CAS : 41787-75-1 

Chlorinated sesquiterpene lactone from two species of Compositae.

Chlorohyssopifolin D

Formula : C21-H29-Cl-O8
CAS : 54278-79-4 

Chlorinated sesquiterpene lactone from two species of Compositae.

Chlorojanerin

Formula : C19-H23-Cl-O7
CAS : 64205-85-2 

From Centaurea solstitialis L.