To link to the content of EndoNet use the EndoNet ID that is given on the detail pages in the format ENX0000, where X is a place holder for the type of the component (e. g. R for receptor or C for anatomical structure). As URL for the linking append this ID to the detail page for this type of component. For an hormone that would be:
http://endonet.bioinf.med.uni-goettingen.de/hormone/ENH00000
It is also possible to use the search of EndoNet to link to the right detail page. The URL should look like
http://endonet.bioinf.med.uni-goettingen.de/search/ENC00000
STVHEILCK LSLEGDHST PPSAYGSVK AYTNFDAER DALNIETAI KTKGVDEVT IVNILTNRS NAQRQDIAF AYQRRTKKE LASALKSAL SGHLETVIL GLLKTPAQY DASELKASM KGLGTDEDS LIEIICSRT NQELQEINR VYKEMYKTD LEKDIISDT SGDFRKLMV ALAKGRRAE DGSVIDYEL IDQDARDLY DAGVKRKGT DVPKWISIM TERSVPHLQ KVFDRYKSY SPYDMLESI RKEVKGDLE NAFLNLVQC IQNKPLYFA DRLYDSMKG KGTRDKVLI RIMVSRSEV DMLKIRSEF KRKYGKSLY YYIQQDTKG DYQKALLYL CGGDD