139578 <common-name>DOTA-Arg-Pro-Lys-Pro-Gln-Gln-Phe-2Thi-Gly-Leu-Met(O2)-NH2 Actinium AC-225</common-name> <description nil="true"/> <cas>2230254-48-3</cas> <pubchem-id nil="true"/> <chemical-formula>C77H119AcN22O22S2</chemical-formula> <weight nil="true"/> <appearance nil="true"/> <melting-point nil="true"/> <boiling-point nil="true"/> <density nil="true"/> <solubility nil="true"/> <specific-gravity nil="true"/> <flash-point nil="true"/> <vapour-pressure nil="true"/> <route-of-exposure nil="true"/> <target nil="true"/> <mechanism-of-toxicity nil="true"/> <metabolism nil="true"/> <toxicity nil="true"/> <lethaldose nil="true"/> <carcinogenicity nil="true"/> <use-source nil="true"/> <min-risk-level nil="true"/> <health-effects nil="true"/> <symptoms nil="true"/> <treatment nil="true"/> <created-at type="dateTime">2026-04-14T22:00:52Z</created-at> <updated-at type="dateTime">2026-05-14T20:07:24Z</updated-at> <interacting-proteins nil="true"/> <wikipedia nil="true"/> <uniprot-id nil="true"/> <kegg-compound-id nil="true"/> <omim-id nil="true"/> <chebi-id nil="true"/> <biocyc-id nil="true"/> <ctd-id nil="true"/> <stitch-id nil="true"/> <drugbank-id>DB18208</drugbank-id> <pdb-id nil="true"/> <actor-id nil="true"/> <organism nil="true"/> <export type="boolean">true</export> <metabolizing-proteins nil="true"/> <transporting-proteins nil="true"/> <moldb-smiles>[225Ac+3].CC(C)C[C@H](NC(=O)CNC(=O)[C@H](CC1=CC=CS1)NC(=O)[C@H](CC1=CC=CC=C1)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCCN)NC(=O)[C@@H]1CCCN1C(=O)[C@H](CCCNC(N)=N)NC(=O)CN1CCN(CC([O-])=O)CCN(CC([O-])=O)CCN(CC([O-])=O)CC1)C(=O)N[C@@H](CCS(C)(=O)=O)C(N)=O</moldb-smiles> <moldb-formula>C77H119AcN22O22S2</moldb-formula> <moldb-inchi>InChI=1S/C77H122N22O22S2.Ac/c1-47(2)39-55(71(114)88-50(67(81)110)24-38-123(3,120)121)87-62(102)42-85-68(111)57(41-49-15-12-37-122-49)93-72(115)56(40-48-13-5-4-6-14-48)92-70(113)51(20-22-60(79)100)89-69(112)52(21-23-61(80)101)90-73(116)58-18-10-28-99(58)76(119)54(16-7-8-25-78)91-74(117)59-19-11-27-98(59)75(118)53(17-9-26-84-77(82)83)86-63(103)43-94-29-31-95(44-64(104)105)33-35-97(46-66(108)109)36-34-96(32-30-94)45-65(106)107;/h4-6,12-15,37,47,50-59H,7-11,16-36,38-46,78H2,1-3H3,(H2,79,100)(H2,80,101)(H2,81,110)(H,85,111)(H,86,103)(H,87,102)(H,88,114)(H,89,112)(H,90,116)(H,91,117)(H,92,113)(H,93,115)(H,104,105)(H,106,107)(H,108,109)(H4,82,83,84);/q;+3/p-3/t50-,51-,52-,53-,54-,55-,56-,57-,58-,59-;/m0./s1/i;1-2</moldb-inchi> <moldb-inchikey>FMQURNZNWLIWQS-BCAUDCSCSA-K</moldb-inchikey> <moldb-average-mass type="decimal">1994.07</moldb-average-mass> <moldb-mono-mass type="decimal">1992.854291484</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>-15</logp> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id nil="true"/> <structure-image-file-name nil="true"/> <structure-image-content-type nil="true"/> <structure-image-file-size type="integer" nil="true"/> <structure-image-updated-at type="dateTime" nil="true"/> <biodb-id nil="true"/> <synthesis-reference nil="true"/> <structure-image-caption nil="true"/> <chemdb-id>CHEM135471</chemdb-id> <dsstox-id nil="true"/> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id nil="true"/> <iupac>(225Ac)actinium(3+) 2-[4-({[(2S)-1-[(2S)-2-{[(2S)-6-amino-1-[(2S)-2-{[(1S)-3-carbamoyl-1-{[(1S)-3-carbamoyl-1-{[(1S)-1-{[(1S)-1-[({[(1S)-1-{[(1S)-1-carbamoyl-3-methanesulfonylpropyl]carbamoyl}-3-methylbutyl]carbamoyl}methyl)carbamoyl]-2-(thiophen-2-yl)ethyl]carbamoyl}-2-phenylethyl]carbamoyl}propyl]carbamoyl}propyl]carbamoyl}pyrrolidin-1-yl]-1-oxohexan-2-yl]carbamoyl}pyrrolidin-1-yl]-5-carbamimidamido-1-oxopentan-2-yl]carbamoyl}methyl)-7,10-bis(carboxylatomethyl)-1,4,7,10-tetraazacyclododecan-1-yl]acetate</iupac> <moldb-polar-surface-area nil="true"/> <moldb-refractivity nil="true"/> <moldb-polarizability nil="true"/> <moldb-rotatable-bond-count nil="true"/> <moldb-acceptor-count nil="true"/> <moldb-donor-count nil="true"/> <moldb-pka-strongest-acidic nil="true"/> <moldb-pka-strongest-basic nil="true"/> <moldb-physiological-charge nil="true"/> <moldb-number-of-rings nil="true"/> <moldb-alogps-logp nil="true"/> <moldb-alogps-logs nil="true"/> <moldb-alogps-solubility nil="true"/> </compound>