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
CGAMSPPQL ALNPSALLS RGCNDSDVL AVAGFALRD INKDRKDGY VLRLNRVND AQEYRRGGL GSLFYLTLD VLETDCHVL RKKAWQDCG MRIFFESVY GQCKAIFYM NNPSRVLYL AAYNCTLRP VSKKKIYMT CPDCPSSIP TDSSNHQVL EAATESLAK YNNENTSKQ YSLFKVTRA SSQWVVGPS YFVEYLIKE SPCTKSQAS SCSLQSSDS VPVGLCKGS LTRTHWEKF VSVTCDFFE SQAPATGSE NSAVNQKPT NLPKVEESQ QKNTPPTDS PSKAGPRGS VQYLPDLDD KNSQEKGPQ EAFPVHLDL TTNPQGETL DISFLFLEP MEEKLVVLP FPKEKARTA ECPGPAQNA SPLVLPP