nucleoside triphosphate 372.949 388.09680 C5H12O13P3R CHEBI:13411 CHEBI:14677 CHEBI:17326 CHEBI:25610 CHEBI:7442 CHEBI:7655 C[C@@H]1O[C@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)[C@@H](O)[C@H]1O KEGG:C00201 NTP Nucleoside triphosphate chebi_ontology nucleoside triphosphates nucleoside phosphate