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
GPPQEESLY LWIDAHQAR VLIGFEEDI LIVSEGKMA PFTHDFRKA QQRMPAIPV NIHSMNFTW QAAGQAEYF YEFLSLRSL DKGIMADPT VNVPLLGTV PHKASVVQV GFPCLGKQD GVAAFEVDV IVMNSEGNT ILQTPQNAI FFKTCLQAE CPGGCRNGG FCNERRICE CPDGFHGPH CEKALCTPR CMNGGLCVT PGFCICPPG FYGVNCDKA NCSTTCFNG GTCFYPGKC ICPPGLEGE QCEISKCPQ PCRNGGKCI GKSKCKCSK GYQGDLCSK PVCEPGCGA HGTCHEPNK CQCQEGWHG RHCNKRYEA SLIHALRPA GAQLRQHTP SLKKAEERR DPPESNYIW
GPPQEESLY LWIDAHQAR VLIGFEEDI LIVSEGKMA PFTHDFRKA QQRMPAIPV NIHSMNFTW QAAGQAEYF YEFLSLRSL DKGIMADPT VNVPLLGTV PHKASVVQV GFPCLGKQD GVAAFEVDV IVMNSEGNT ILQTPQNAI FFKTCQQAE CPGGCRNGG FCNERRICE CPDGFHGPH CEKALCTPR CMNGGLCVT PGFCICPPG FYGVNCDKA NCSTTCFNG GTCFYPGKC ICPPGLEGE QCEISKCPQ PCRNGGKCI GKSKCKCSK GYQGDLCSK PVCEPGCGA HGTCHEPNK CQCQEGWHG RHCNKRYEA SLIHALRPA GAQLRQHTP SLKKAEERR DPPESNYIW