{"id":12361,"date":"2025-06-19T16:33:12","date_gmt":"2025-06-19T14:33:12","guid":{"rendered":"https:\/\/emserra.com\/desarrollo\/servireach\/consultancy-2\/qsar-and-read-across\/"},"modified":"2026-02-06T08:41:57","modified_gmt":"2026-02-06T06:41:57","slug":"qsar-and-read-across","status":"publish","type":"page","link":"https:\/\/servireach.com\/en\/consultancy\/qsar-and-read-across\/","title":{"rendered":"QSAR and read-across"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"12361\" class=\"elementor elementor-12361 elementor-9495\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-21afd7f e-flex e-con-boxed e-con e-parent\" data-id=\"21afd7f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e1e0f14 elementor-widget elementor-widget-heading\" data-id=\"e1e0f14\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Computational Studies \u2013 QSAR and Read-Across<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e4a8c44 elementor-absolute flecha-header elementor-widget elementor-widget-image\" data-id=\"e4a8c44\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_position&quot;:&quot;absolute&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"#inicio\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"24\" height=\"24\" src=\"https:\/\/servireach.com\/wp-content\/uploads\/2025\/05\/flecha.svg\" class=\"attachment-full size-full wp-image-11745\" alt=\"\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5e1b715 e-flex e-con-boxed e-con e-parent\" data-id=\"5e1b715\" data-element_type=\"container\" data-e-type=\"container\" id=\"inicio\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d85ad5f e-flex e-con-boxed e-con e-child\" data-id=\"d85ad5f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8069440 elementor-widget elementor-widget-text-editor\" data-id=\"8069440\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"wpb_text_column wpb_content_element\"><div class=\"wpb_wrapper\"><p>Computational chemistry, through computational simulations of molecular systems, gives us an alternative to animal experimentation, providing reliable answers to complex chemical issues such as the effects certain substances can have on health and the environment.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3315702 e-con-full e-flex e-con e-parent\" data-id=\"3315702\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ab39531 vc_row wpb_row vc_row-fluid vc_custom_1734852052336 vc_row-has-fill vc_row-no-padding vc_general vc_parallax vc_parallax-content-moving e-flex e-con-boxed e-con e-child\" data-id=\"ab39531\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_motion_fx_motion_fx_scrolling&quot;:&quot;yes&quot;,&quot;background_motion_fx_translateY_direction&quot;:&quot;negative&quot;,&quot;background_motion_fx_translateY_affectedRange&quot;:{&quot;unit&quot;:&quot;%&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:{&quot;start&quot;:20,&quot;end&quot;:80}},&quot;background_background&quot;:&quot;classic&quot;,&quot;background_motion_fx_translateY_effect&quot;:&quot;yes&quot;,&quot;background_motion_fx_translateY_speed&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:4,&quot;sizes&quot;:[]},&quot;background_motion_fx_devices&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d4e7f29 e-grid e-con-full e-con e-child\" data-id=\"d4e7f29\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b38ca79 elementor-widget elementor-widget-text-editor\" data-id=\"b38ca79\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a title=\"QSAR\" href=\"https:\/\/www.oecd.org\/chemicalsafety\/risk-assessment\/oecdquantitativestructure-activityrelationshipsprojectqsars.htm\" target=\"_blank\" rel=\"noopener noreferrer\">(Q)SAR <\/a>(Quantitative Structure-Activity Relationship) models are mathematical models that enable us to predict the physical-chemical, toxicological and eco-toxicological properties of chemical compounds through the study of their molecular structures.<\/p><p><a title=\"Grouping of substances\" href=\"https:\/\/www.oecd.org\/env\/ehs\/risk-assessment\/groupingofchemicalschemicalcategoriesandread-across.htm\" target=\"_blank\" rel=\"noopener noreferrer\">Grouping substances<\/a> in accordance with their structural similarities (common functional groups, identical precursors and degradation compounds, etc.) enables us to conduct a read-across or trend analysis to predict a property of one substance using data from other similar substances.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7105702 elementor-widget elementor-widget-text-editor\" data-id=\"7105702\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This type of prediction practice is well established in the field of scientific regulation (REACH, BPR, CLP, ICH, etc.), and better and better results are being obtained as scientific knowledge evolves.<\/p><p>The use of QSAR and read-across models has become the best alternative to animal experimentation, due to the fact these methods provide extremely reliable results while reducing the usual times and costs inherent to laboratory testing.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9230f1d e-flex e-con-boxed e-con e-parent\" data-id=\"9230f1d\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-70e8c65 e-con-full e-flex e-con e-child\" data-id=\"70e8c65\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b93af8b elementor-widget elementor-widget-text-editor\" data-id=\"b93af8b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We at <a href=\"https:\/\/servireach.com\/en\/about-us\/\" target=\"_blank\" rel=\"noopener\">ServiREACH<\/a> conduct computational studies of chemical compounds for use in different sectors (pharmaceutical, chemical, agrochemical, cosmetic, etc.).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38a0e9e elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"38a0e9e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-check-circle\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm0 48c110.532 0 200 89.451 200 200 0 110.532-89.451 200-200 200-110.532 0-200-89.451-200-200 0-110.532 89.451-200 200-200m140.204 130.267l-22.536-22.718c-4.667-4.705-12.265-4.736-16.97-.068L215.346 303.697l-59.792-60.277c-4.667-4.705-12.265-4.736-16.97-.069l-22.719 22.536c-4.705 4.667-4.736 12.265-.068 16.971l90.781 91.516c4.667 4.705 12.265 4.736 16.97.068l172.589-171.204c4.704-4.668 4.734-12.266.067-16.971z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"><b>Prediction of properties<\/b> We predict the physical-chemical, toxicological and eco-toxicological properties of chemical substances required to comply with the requirements of the regulations in force, all of which is justified and documented pursuant to the law. <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-check-circle\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm0 48c110.532 0 200 89.451 200 200 0 110.532-89.451 200-200 200-110.532 0-200-89.451-200-200 0-110.532 89.451-200 200-200m140.204 130.267l-22.536-22.718c-4.667-4.705-12.265-4.736-16.97-.068L215.346 303.697l-59.792-60.277c-4.667-4.705-12.265-4.736-16.97-.069l-22.719 22.536c-4.705 4.667-4.736 12.265-.068 16.971l90.781 91.516c4.667 4.705 12.265 4.736 16.97.068l172.589-171.204c4.704-4.668 4.734-12.266.067-16.971z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"> <b>Tox-Screening<\/b> A study of the toxicological alerts a chemical compound could trigger at the human health and environmental level. <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-check-circle\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm0 48c110.532 0 200 89.451 200 200 0 110.532-89.451 200-200 200-110.532 0-200-89.451-200-200 0-110.532 89.451-200 200-200m140.204 130.267l-22.536-22.718c-4.667-4.705-12.265-4.736-16.97-.068L215.346 303.697l-59.792-60.277c-4.667-4.705-12.265-4.736-16.97-.069l-22.719 22.536c-4.705 4.667-4.736 12.265-.068 16.971l90.781 91.516c4.667 4.705 12.265 4.736 16.97.068l172.589-171.204c4.704-4.668 4.734-12.266.067-16.971z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"><b>Studies of impurities and degradation compounds<\/b> We assess the potential presence of different substances in a medicine, for example, to determine the risk this could pose.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-check-circle\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119.033 8 8 119.033 8 256s111.033 248 248 248 248-111.033 248-248S392.967 8 256 8zm0 48c110.532 0 200 89.451 200 200 0 110.532-89.451 200-200 200-110.532 0-200-89.451-200-200 0-110.532 89.451-200 200-200m140.204 130.267l-22.536-22.718c-4.667-4.705-12.265-4.736-16.97-.068L215.346 303.697l-59.792-60.277c-4.667-4.705-12.265-4.736-16.97-.069l-22.719 22.536c-4.705 4.667-4.736 12.265-.068 16.971l90.781 91.516c4.667 4.705 12.265 4.736 16.97.068l172.589-171.204c4.704-4.668 4.734-12.266.067-16.971z\"><\/path><\/svg>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\"><b>Consulting<\/b> With our expert advice, we can efficiently and carefully address your queries, becoming a trusted ally and providing quick solutions to any technical questions.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-d3b83cc e-flex e-con-boxed e-con e-parent\" data-id=\"d3b83cc\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e9b7acb elementor-widget elementor-widget-heading\" data-id=\"e9b7acb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Do you have any doubts with regard to whether these alternative models can help you?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5aa2f3 elementor-widget elementor-widget-text-editor\" data-id=\"a5aa2f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We would be delighted to provide you with guidance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b29f1a elementor-align-center elementor-widget elementor-widget-button\" data-id=\"9b29f1a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/servireach.com\/en\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">YES, I WANT TO KNOW MORE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5270b1f e-flex e-con-boxed e-con e-parent\" data-id=\"5270b1f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-38cc458 e-con-full e-flex e-con e-child\" data-id=\"38cc458\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0ab996c elementor-widget elementor-widget-heading\" data-id=\"0ab996c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Other pages that may interest you<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5ffd98d e-grid e-con-full e-con e-child\" data-id=\"5ffd98d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2eab94 elementor-widget elementor-widget-text-editor\" data-id=\"f2eab94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/servireach.com\/blog\/reach-que-es-reach\/\">What does REACH mean?<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6017679 elementor-widget elementor-widget-text-editor\" data-id=\"6017679\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/servireach.com\/en\/software\/reachgallery\/\">Software for REACH compliance<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec841af elementor-widget elementor-widget-text-editor\" data-id=\"ec841af\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/servireach.com\/en\/consultancy\/reach\/reach-only-representative\/\">Exclusive representation OR<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-db9b60a elementor-widget elementor-widget-text-editor\" data-id=\"db9b60a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a href=\"https:\/\/servireach.com\/en\/blog\/how-sell-chemicals-in-europe\/\">How 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(Q)SAR (Quantitative Structure-Activity Relationship) models are mathematical models that enable us to predict the [&hellip;]<\/p>\n","protected":false},"author":37,"featured_media":0,"parent":12300,"menu_order":11,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-12361","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>QSAR and read-across for chemical compounds | ServiREACH<\/title>\n<meta name=\"description\" content=\"We evaluate QSAR and read-across to reduce trials while maintaining acceptable criteria for regulatory authorities. 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