137856 <common-name>Preimplantation factor</common-name> <description>Preimplantation factor belongs to the polypeptides, a class of organic polymers within the organic compounds. It has the chemical formula C67H115N21O23S. With an average molecular weight of 1,615 g/mol, Preimplantation factor is a heavy molecule.</description> <cas>485818-40-4</cas> <pubchem-id>134687212</pubchem-id> <chemical-formula>C67H115N21O23S</chemical-formula> <weight>1614.8</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">2026-04-14T20:43:49Z</created-at> <updated-at type="dateTime">2026-09-01T08:39:33Z</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>DB16301</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>CC[C@H](C)[C@H](NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@@H](NC(=O)[C@@H](N)CCSC)C(C)C)C(=O)N[C@@H](CCCCN)C(=O)N1CCC[C@H]1C(=O)NCC(=O)N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC(O)=O)C(O)=O</moldb-smiles> <moldb-formula>C67H115N21O23S</moldb-formula> <moldb-inchi>InChI=1S/C67H115N21O23S/c1-7-34(4)52(86-55(99)37(17-12-23-74-67(72)73)78-62(106)51(33(2)3)85-54(98)36(70)20-26-112-6)63(107)80-39(16-9-11-22-69)65(109)87-24-13-18-45(87)60(104)75-30-48(92)77-43(31-89)58(102)76-35(5)53(97)81-40(27-47(71)91)56(100)79-38(15-8-10-21-68)64(108)88-25-14-19-46(88)61(105)84-44(32-90)59(103)82-41(28-49(93)94)57(101)83-42(66(110)111)29-50(95)96/h33-46,51-52,89-90H,7-32,68-70H2,1-6H3,(H2,71,91)(H,75,104)(H,76,102)(H,77,92)(H,78,106)(H,79,100)(H,80,107)(H,81,97)(H,82,103)(H,83,101)(H,84,105)(H,85,98)(H,86,99)(H,93,94)(H,95,96)(H,110,111)(H4,72,73,74)/t34-,35-,36-,37-,38-,39-,40-,41-,42-,43-,44-,45-,46-,51-,52-/m0/s1</moldb-inchi> <moldb-inchikey>GLXYOFXNKBTMQL-YKCHQESGSA-N</moldb-inchikey> <moldb-average-mass type="decimal">1614.84</moldb-average-mass> <moldb-mono-mass type="decimal">1613.819540221</moldb-mono-mass> <origin nil="true"/> <state nil="true"/> <logp>-18</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>CHEM133749</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>(2S)-2-[(2S)-2-[(2S)-2-{[(2S)-1-[(2S)-6-amino-2-[(2S)-2-[(2S)-2-[(2S)-2-(2-{[(2S)-1-[(2S)-6-amino-2-[(2S,3S)-2-[(2S)-2-[(2S)-2-[(2S)-2-amino-4-(methylsulfanyl)butanamido]-3-methylbutanamido]-5-carbamimidamidopentanamido]-3-methylpentanamido]hexanoyl]pyrrolidin-2-yl]formamido}acetamido)-3-hydroxypropanamido]propanamido]-3-carbamoylpropanamido]hexanoyl]pyrrolidin-2-yl]formamido}-3-hydroxypropanamido]-3-carboxypropanamido]butanedioic 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>Organic Polymers</superklass> <klass>Polypeptides</klass> <subklass nil="true"/> <paper-count type="integer">38555</paper-count> <sync-id>CED0001607</sync-id> <structure-inchikey>GLXYOFXNKBTMQL-YKCHQESGSA-N</structure-inchikey> <structure-fingerprint>40100000004000200000c00000080c00000901000000000044000002000020000000001002000000000000002000008004200000000000020000000020800010000010000000000c00000000000180000020001000004000080000009000000000002000010000000400400000100022000000030100004000000504000001340800000040000020000082020000040080001002000000000000000000000000112000000004000000000000000040000000004080100800008000000004002000800200000000000000218000000000000000900000110000400010000400400000000104008840000008000020010400000200000000000000000088000000</structure-fingerprint> <structure-pattern-fingerprint>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</structure-pattern-fingerprint> <structure-pickle type="binary" encoding="base64">776t3gAAAAAQAAAAAwAAAAAAAABwAAAAcQAAAIABBgBgAAAAAQMGAGAAAAAC AgYgNAAAAAIBBAYAYAAAAAEDBiA0AAAAAgEEBwBoAAAAAwIBBgAoAAAAAwQI ACgAAAADAgYgNAAAAAIBBAYAYAAAAAICBgBgAAAAAgIGAGAAAAACAgcAaAAA AAMCAQYAKAAAAAMEBwBoAAAAAwECBwBoAAAAAwIBBwBoAAAAAwIBBgAoAAAA AwQIACgAAAADAgYgNAAAAAEBBAcAaAAAAAMCAQYAKAAAAAMECAAoAAAAAwIG IDQAAAABAQQHAGAAAAABAgYAYAAAAAICBgBgAAAAAgIQACAAAAACBgBgAAAA AQMGAGAAAAADAQYAYAAAAAEDBgBgAAAAAQMGACgAAAADBAgAKAAAAAMCBwBo AAAAAwIBBiA0AAAAAQEEBgBgAAAAAgIGAGAAAAACAgYAYAAAAAICBgBgAAAA AgIHAGAAAAABAgYAKAAAAAMECAAoAAAAAwIHACgAAAADAwYAYAAAAAICBgBg AAAAAgIGAGAAAAACAgYgNAAAAAEBBAYAKAAAAAMECAAoAAAAAwIHAGgAAAAD AgEGAGAAAAACAgYAKAAAAAMECAAoAAAAAwIHAGgAAAADAgEGIDQAAAABAQQG AGAAAAACAggAYAAAAAEBBgAoAAAAAwQIACgAAAADAgcAaAAAAAMCAQYgNAAA AAEBBAYAYAAAAAEDBgAoAAAAAwQIACgAAAADAgcAaAAAAAMCAQYgNAAAAAEB BAYAYAAAAAICBgAoAAAAAwQHAGgAAAADAQIIACgAAAADAgYAKAAAAAMECAAo AAAAAwIHAGgAAAADAgEGIDQAAAABAQQGAGAAAAACAgYAYAAAAAICBgBgAAAA AgIGAGAAAAACAgcAYAAAAAECBgAoAAAAAwQIACgAAAADAgcAKAAAAAMDBgBg AAAAAgIGAGAAAAACAgYAYAAAAAICBiA0AAAAAQEEBgAoAAAAAwQIACgAAAAD AgcAaAAAAAMCAQYgNAAAAAEBBAYAYAAAAAICCABgAAAAAQEGACgAAAADBAgA KAAAAAMCBwBoAAAAAwIBBiA0AAAAAQEEBgBgAAAAAgIGACgAAAADBAgAaAAA AAMBAQgAKAAAAAMCBgAoAAAAAwQIACgAAAADAgcAaAAAAAMCAQYgNAAAAAEB BAYAYAAAAAICBgAoAAAAAwQIAGgAAAADAQEIACgAAAADAgYAKAAAAAMECABo AAAAAwEBCAAoAAAAAwILAAEAAQIAAgMAAgQABAUABQYgBgcoAgYIAAgJAAkK AAoLAAsMAAwNIA0OIA0PKAIIEAAQESAREigCERMAExQAFBUgFRYoAhUXABcY ABcZABkaABobABscABMdAB0eAB0fAAQgACAhKAIgIiAiIwAjJAAkJQAlJgAm JwAnKAAjKQApKigCKSsgKywALC0ALS4ALi8ALzAAMDEoAjAyIDIzADM0ADQ1 KAI0NiA2NwA3OAA4OQA3OgA6OygCOjwgPD0APT4APT8AP0AoAj9BIEFCAEJD AENEAERFIERGKAJCRwBHSCgCR0kgSUoASksAS0wATE0ATU4ATk8ASlAAUFEo AlBSIFJTAFNUAFRVAFVWAFZXAFdYKAJXWSBZWgBaWwBbXABaXQBdXigCXV8g X2AAYGEAYWIAYmMgYmQoAmBlAGVmKAJlZyBnaABoaQBpagBqayBqbCgCaG0A bW4gbW8oAi8rAFZSAEICAAAABSssLS4vBVNSVlVUFwQAAAAAAAAAFg== </structure-pickle> <structure-indexed-at type="dateTime">2026-09-19T04:50:37Z</structure-indexed-at> </compound>