Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones.

293711 Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; somatotropin, its derivatives and structural analogues 293712 Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; insulin and its salts 293719 Polypeptide hormones, protein hormones and glycoprotein hormones, their derivatives and structural analogues; other than somatotropin, (its derivatives and structural anaologues) and insulin and its salts 293721 Steroidal hormones, their derivatives and structural analogues; cortisone, hydrocortisone, prednisone (dehydrocortisone) and prednisolone (dehydrohydrocortisone) 293722 Steroidal hormones, their derivatives and structural analogues; halogenated derivatives of corticosteroidal hormones 293723 Steroidal hormones, their derivatives and structural analogues; oestrogens and progestogens 293729 Steroidal hormones, their derivatives and structural analogues; other than cortisone, hydrocortisone, prednisone (dehydrocortisone), prednisolone (dehydrohydrocortisone), halogenated derivatives of corticosteroidal hormones, oestrogen and progestogens 293750 Prostaglandins, thromboxanes and leukotrienes, their derivatives and structural analogues 293790 Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones, n.e.c. in heading 2937