| Label | Id | |
|---|---|---|
| Hexafluorouranium | http://purl.obolibrary.org/obo/CHEBI_30235 | |
| Hexanoate | http://purl.obolibrary.org/obo/CHEBI_30776 | |
| H2B2(O2)2(OH)4 | http://purl.obolibrary.org/obo/CHEBI_30174 | |
| H2Dtpp-mGDP | http://purl.obolibrary.org/obo/CHEBI_30404 | |
| H2Ge< | http://purl.obolibrary.org/obo/CHEBI_30554 | |
| H2Ge= | http://purl.obolibrary.org/obo/CHEBI_30553 | |
| H2In- | http://purl.obolibrary.org/obo/CHEBI_30431 | |
| H2N-C(=NH)-NH-C(=NH)-NH2 | http://purl.obolibrary.org/obo/CHEBI_3095 | |
| H2N=NH(+) | http://purl.obolibrary.org/obo/CHEBI_30094 | |
| H2NN(2-) | http://purl.obolibrary.org/obo/CHEBI_30101 | |
| H2NNH(-) | http://purl.obolibrary.org/obo/CHEBI_30095 | |
| H2NNH(.) | http://purl.obolibrary.org/obo/CHEBI_30093 | |
| H2PFO3 | http://purl.obolibrary.org/obo/CHEBI_30210 | |
| H2Po | http://purl.obolibrary.org/obo/CHEBI_30444 | |
| H2SbHO2 | http://purl.obolibrary.org/obo/CHEBI_30299 |