{"id":1506,"date":"2024-01-04T10:45:44","date_gmt":"2024-01-04T15:45:44","guid":{"rendered":"https:\/\/molecularsciences.org\/content\/?p=1506"},"modified":"2024-01-04T10:45:45","modified_gmt":"2024-01-04T15:45:45","slug":"python-script-to-convert-smiles-notation-to-iupac-names","status":"publish","type":"post","link":"https:\/\/molecularsciences.org\/content\/python-script-to-convert-smiles-notation-to-iupac-names\/","title":{"rendered":"Python script to convert SMILES notation to IUPAC names"},"content":{"rendered":"\n<p>Converting SMILES notation to IUPAC names involves the use of a library that can perform chemical nomenclature. The <code>openbabel<\/code> library is a versatile tool for this purpose. Before using it, you need to install the library. You can do this using:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pip install openbabel\r<\/code><\/pre>\n\n\n\n<p>Here&#8217;s a Python script that uses <code>openbabel<\/code> to convert SMILES notation to IUPAC names:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from openbabel import openbabel\r\n\r\ndef smiles_to_iupac(smiles):\r\n    # Initialize the OpenBabel molecule\r\n    obConversion = openbabel.OBConversion()\r\n    obMol = openbabel.OBMol()\r\n    \r\n    # Convert SMILES to OpenBabel molecule\r\n    obConversion.SetInFormat(\"smi\")\r\n    obConversion.ReadString(obMol, smiles)\r\n\r\n    # Generate IUPAC name\r\n    iupac_name = obConversion.GetIUPACName(obMol)\r\n\r\n    return iupac_name\r\n\r\nif __name__ == \"__main__\":\r\n    # Example usage\r\n    smiles_notation = \"CCO\"\r\n    iupac_name = smiles_to_iupac(smiles_notation)\r\n    print(f\"IUPAC Name for {smiles_notation}: {iupac_name}\")\r<\/code><\/pre>\n\n\n\n<p>In this script:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>We use the <code>openbabel<\/code> library to initialize an OpenBabel molecule (<code>obMol<\/code>).<\/li>\n\n\n\n<li>The <code>smiles_to_iupac<\/code> function takes a SMILES string as input, converts it to an OpenBabel molecule, and retrieves the IUPAC name.<\/li>\n\n\n\n<li>Example usage is provided for a SMILES string (&#8220;CCO&#8221;).<\/li>\n<\/ol>\n\n\n\n<p>Make sure to replace the <code>smiles_notation<\/code> variable with your desired SMILES string.<\/p>\n\n\n\n<p>Note: While <code>openbabel<\/code> is a powerful tool for chemical conversion, the accuracy of IUPAC names depends on the complexity of the molecule and the rules of nomenclature. It may not always provide human-readable names for highly complex structures.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Converting SMILES notation to IUPAC names involves the use of a library that can perform chemical nomenclature. The openbabel library is a versatile tool for this purpose. Before using it, you need to install the library. You can do this using: Here&#8217;s a Python script that uses openbabel to convert SMILES notation to IUPAC names: [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[203,299],"tags":[],"class_list":["post-1506","post","type-post","status-publish","format-standard","hentry","category-python","category-science"],"_links":{"self":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/comments?post=1506"}],"version-history":[{"count":1,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1506\/revisions"}],"predecessor-version":[{"id":1507,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/posts\/1506\/revisions\/1507"}],"wp:attachment":[{"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/media?parent=1506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/categories?post=1506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/molecularsciences.org\/content\/wp-json\/wp\/v2\/tags?post=1506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}