cadmium atom 0 112.41100 113.903 48Cd BDOSMKKIYDKNTQ-UHFFFAOYSA-N CAS:7440-43-9 CHEBI:22977 Cd InChI=1S/Cd KEGG:C01413 Kadmium WebElements:Cd [Cd] cadmio cadmium cadmium chebi_ontology zinc group element atom