deuterium atom (2)1H (2)H 0 2.01410 CHEBI:29237 D Deuterium InChI=1S/H2/h1H/i1+1 The stable isotope of hydrogen with relative atomic mass 2.014102 and a natural abundance of 0.0115 atom percent (from Greek deltaepsilonupsilontauepsilonrhoomicronnu, second). UFHFLCQGNIYNRP-OUBTZVSYSA-N [2H] chebi.owl chebi_ontology deuterio deuterium deuterium heavy hydrogen hidrogeno pesado hydrogen-2 obi.owl schwerer Wasserstoff hydrogen atom