Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 37 Hormones...; derivatives and structural analogues thereof,... used as hormones; 29 37 21 Cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone .... 29 37 21 00 Cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone .... Commodity Code Description 29 37 21 00 000 Cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone ....