81600 <common-name>6-[2-(4-Aminophenyl)diazenyl]-5-hydroxy-1-naphthalenesulfonic acid</common-name> <description>6-[2-(4-Aminophenyl)diazenyl]-5-hydroxy-1-naphthalenesulfonic acid belongs to the naphthalenes, a class of benzenoids within the organic compounds. This compound has the chemical formula C16H13N3O4S1 and an average molecular weight of 343.36 g/mol.</description> <cas>25305-93-5</cas> <pubchem-id>91389</pubchem-id> <chemical-formula>C16H13N3O4S1</chemical-formula> <weight>343.4</weight> <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">2026-04-04T18:20:22Z</created-at> <updated-at type="dateTime">2026-08-28T17:15:00Z</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 nil="true"/> <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>NC1=CC=C(C=C1)N=NC1=C(O)C2=C(C=C1)C(=CC=C2)S(O)(=O)=O</moldb-smiles> <moldb-formula>C16H13N3O4S1</moldb-formula> <moldb-inchi>InChI=1S/C16H13N3O4S/c17-10-4-6-11(7-5-10)18-19-14-9-8-12-13(16(14)20)2-1-3-15(12)24(21,22)23/h1-9,18H,17H2,(H,21,22,23)</moldb-inchi> <moldb-inchikey>SJDWIIRQOOJASM-UHFFFAOYSA-N</moldb-inchikey> <moldb-average-mass type="decimal">343.36</moldb-average-mass> <moldb-mono-mass type="decimal">343.062677</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>2.7</logp> <hmdb-id nil="true"/> <chembl-id nil="true"/> <chemspider-id>4675248</chemspider-id> <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>CHEM077493</chemdb-id> <dsstox-id>DTXSID501023884</dsstox-id> <toxcast-id nil="true"/> <stoff-ident-origin nil="true"/> <stoff-ident-id nil="true"/> <susdat-id>NS00040846</susdat-id> <iupac>6-[(4-aminophenyl)diazenyl]-5-hydroxynaphthalene-1-sulfonic acid</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"/> <kingdom>Organic compounds</kingdom> <superklass>Benzenoids</superklass> <klass>Naphthalenes</klass> <subklass nil="true"/> <paper-count type="integer">0</paper-count> <sync-id>CED0162302</sync-id> <structure-inchikey>ANQQFIVHXBBRHV-UHFFFAOYSA-N</structure-inchikey> <structure-fingerprint>2000000000000000000000000002000000000080000000200000000000000000000000000000000000020000000000800000000000000000000000000000000000000000000000008000000020000028000000000000000004000000000000000000010000000800000000000080000000001000000000000000800000000001000000000000800000000000000000009000000000000000000000000000000000000000000000040000080000000000000000004000080001100000000000000000040100002000000000000000000280000000000004000200000000000008000000000002000040000000000000000000000000000000400000000000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAAAYAAAAGgAAAIABBwBoAAAAAwECBkAoAAAA AwQGQGgAAAADAwEGQGgAAAADAwEGQCgAAAADBAZAaAAAAAMDAQZAaAAAAAMD AQcAKAAAAAMDBwAoAAAAAwMGQCgAAAADBAZAKAAAAAMECABoAAAAAwEBBkAo AAAAAwQGQCgAAAADBAZAaAAAAAMDAQZAaAAAAAMDAQZAKAAAAAMEBkBoAAAA AwMBBkBoAAAAAwMBBkBoAAAAAwMBEAAgAAAABggAYAAAAAEBCAAoAAAAAwII ACgAAAADAgsAASABAmgMAgNoDAMEaAwEBWgMBQZoDAQHIAcIKAIICSAJCmgM CgsgCgxoDAwNaAwNDmgMDg9oDA0QaAwQEWgMERJoDBITaAwQFAAUFQAUFggC FBcIAgYBaAwPCWgMEwxoDEIDAAAABgEGBQQDAgYKDA0ODwkGEBESEwwNFwQA AAAAAAAAFg== </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T04:28:09Z</structure-indexed-at> </compound>