diff --git a/docs/electrochemistry.html b/docs/electrochemistry.html
index b253956..7085078 100644
--- a/docs/electrochemistry.html
+++ b/docs/electrochemistry.html
@@ -548,7 +548,7 @@ <h3 id="electrochemistry_94497aca_52a0_48e3_9b76_157b050e35b3">R2032</h3><p clas
 <h3 id="electrochemistry_fab4bd12_c4ed_417a_92a3_bcb109000d82">R2040</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_fab4bd12_c4ed_417a_92a3_bcb109000d82</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 20.0 mm and a height of 4.0 mm</p><hr>
 <h3 id="electrochemistry_400cb3e0_27b5_4d9a_be80_f86ad2757763">R2050</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_400cb3e0_27b5_4d9a_be80_f86ad2757763</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 20.0 mm and a height of 5.0 mm</p><hr>
 <h3 id="electrochemistry_fbf40756_3265_4468_bcdb_88d162afc539">R2320</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_fbf40756_3265_4468_bcdb_88d162afc539</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 2.0 mm</p><hr>
-<h3 id="electrochemistry_0689e6fc_cda7_4e04_b1eb_41459a0a4736">R2325</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_0689e6fc_cda7_4e04_b1eb_41459a0a4736</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 2.5 mm</p><hr>
+<h3 id="electrochemistry_0689e6fc_cda7_4e04_b1eb_41459a0a4736">R2325</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_0689e6fc_cda7_4e04_b1eb_41459a0a4736</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 2.5 mm</p><p class="entity"><i>Alternative Label(s)</i>: R23/3</p><hr>
 <h3 id="electrochemistry_11579b47_cbf8_45ac_aed3_343ea533b346">R2330</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_11579b47_cbf8_45ac_aed3_343ea533b346</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 3.0 mm</p><hr>
 <h3 id="electrochemistry_885ffc4d_2b29_42d6_8597_6fc879c21d60">R2335</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_885ffc4d_2b29_42d6_8597_6fc879c21d60</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 3.5 mm</p><hr>
 <h3 id="electrochemistry_af92a3ae_e870_4676_9ae7_cda277b1e6e1">R2354</h3><p class="entity"><i>https://w3id.org/emmo/domain/electrochemistry#electrochemistry_af92a3ae_e870_4676_9ae7_cda277b1e6e1</i></p><p class="entity"><i>Elucidation</i>: a coin case with a nominal diameter of 23.0 mm and a height of 5.4 mm</p><hr>
diff --git a/docs/electrochemistry.ttl b/docs/electrochemistry.ttl
index f9320c8..17d8c30 100644
--- a/docs/electrochemistry.ttl
+++ b/docs/electrochemistry.ttl
@@ -299,6 +299,7 @@ email: jesper.friis@sintef.no"""@en ;
 :electrochemistry_0689e6fc_cda7_4e04_b1eb_41459a0a4736 rdf:type owl:Class ;
                                                        rdfs:subClassOf :electrochemistry_3979cd56_6256_414d_966c_7f723bf71e37 ;
                                                        emmo:EMMO_967080e5_2f42_4eb2_a3a9_c58143e835f9 "a coin case with a nominal diameter of 23.0 mm and a height of 2.5 mm"@en ;
+                                                       skos:altLabel "R23/3"@en ;
                                                        skos:prefLabel "R2325"@en .