{"id":1542,"date":"2026-09-06T19:43:49","date_gmt":"2026-09-06T19:43:49","guid":{"rendered":"https:\/\/nex-chems.com\/?post_type=product&#038;p=1542"},"modified":"2026-09-06T19:43:49","modified_gmt":"2026-09-06T19:43:49","slug":"s-23-capsules","status":"publish","type":"product","link":"https:\/\/nex-chems.com\/pt\/product\/s-23-capsules\/","title":{"rendered":"S-23 Capsules"},"content":{"rendered":"<h3>A. Introduction<\/h3>\n<p><b>S-23<\/b>\u00a0is a specialized compound within the SARM category, utilized by research institutions to investigate tissue-selective activation of androgen receptors. Originally developed to explore applications in hormonal regulation, it serves as a critical reference standard for laboratories studying the molecular dynamics of protein synthesis and bone mineral density in cellular models.<\/p>\n<h3>B. Scientific Overview<\/h3>\n<p>Chemically identified as (S)-3-(4-chloro-3-fluorophenoxy)-N-(4-cyano-3-(trifluoromethyl)phenyl)-2-hydroxy-2-methylpropanamide ($C_{18}H_{13}ClF_{4}N_{2}O_{3}$), S-23 is a substituted propanamide. In research settings, it is utilized to study the suppression of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) through negative feedback loops. Researchers focus on its exceptionally high binding affinity and its ability to promote anabolic gene expression while maintaining high selectivity.<\/p>\n<h3>C. Product Specifications<\/h3>\n<ul>\n<li><b>Form:<\/b>\u00a0Encapsulated powder for laboratory measurement<\/li>\n<li><b>Active Concentration:<\/b>\u00a010mg per unit<\/li>\n<li><b>Chemical Class:<\/b>\u00a0Substituted Propanamide \/ SARM<\/li>\n<li><b>Molecular Formula:<\/b>\u00a0$C_{18}H_{13}ClF_{4}N_{2}O_{3}$<\/li>\n<li><b>Purity:<\/b>\u00a0\u226599% (HPLC Verified)<\/li>\n<li><b>Quantity:<\/b>\u00a0Available in standardized laboratory counts<\/li>\n<li><b>Storage:<\/b>\u00a0Store in a cool, dry environment (15\u00b0C to 25\u00b0C) protected from moisture and direct UV light.<\/li>\n<\/ul>\n<h3>D. Laboratory Use Context<\/h3>\n<p>S-23 capsules are provided exclusively for\u00a0<b>in-vitro research<\/b>\u00a0and\u00a0<b>analytical testing<\/b>. They are a primary reagent for:<\/p>\n<ul>\n<li>Investigating tissue-selective androgen receptor modulation in cell cultures.<\/li>\n<li>Studying the molecular mechanisms of gonadotropin suppression.<\/li>\n<li>Calibration and validation of LC-MS and GC-MS equipment for SARM screening.<\/li>\n<li><i>In-vitro<\/i>\u00a0comparative analysis of halogenated SARM analogues.<\/li>\n<\/ul>\n<h3>E. Quality Testing<\/h3>\n<ul>\n<li><b>Analytical Precision:<\/b>\u00a0Each batch undergoes rigorous HPLC analysis to confirm chemical purity and exact 10mg concentration accuracy per capsule.<\/li>\n<li><b>Structural Identity:<\/b>\u00a0Mass Spectrometry (MS) and Proton NMR verify the presence of the trifluoromethyl, cyano, and halogenated phenoxy groups.<\/li>\n<li><b>Batch Consistency:<\/b>\u00a0Manufactured under strict laboratory protocols to ensure reproducible results for complex longitudinal studies.<\/li>\n<\/ul>\n<h3>F. Shipping Handling<\/h3>\n<p>Our S-23 capsules are dispatched in high-barrier, moisture-proof, and UV-protected packaging to maintain the chemical stability of the compound during transit. We provide professional, discreet worldwide shipping to support the requirements of international research facilities and commercial laboratories.<\/p>\n<h3>G. Compliance Disclaimer (CLEAR PROMINENT)<\/h3>\n<blockquote><p><b>FOR RESEARCH USE ONLY. NOT FOR HUMAN CONSUMPTION.<\/b>\u00a0This product is a research chemical and is strictly for\u00a0<i>in-vitro<\/i>\u00a0laboratory applications and analytical testing. It is not intended for diagnostic or therapeutic use in humans or animals. No medical instructions or dosages are provided. The purchaser assumes all responsibility for compliance with local and international regulations regarding the acquisition and handling of this substance.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>A. Introduction S-23\u00a0is a specialized compound within the SARM category, utilized by research institutions to investigate tissue-selective activation of androgen [&hellip;]<\/p>\n","protected":false},"featured_media":1543,"comment_status":"open","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[218,261,262],"product_tag":[],"class_list":["post-1542","product","type-product","status-publish","has-post-thumbnail","product_cat-capsules-research-chemicals","product_cat-muscle-growth-bulking","product_cat-sarms","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","purchasable","product-type-simple"],"uagb_featured_image_src":{"full":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"thumbnail":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules-150x150.png",150,150,true],"medium":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules-300x300.png",300,300,true],"medium_large":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"large":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"1536x1536":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"2048x2048":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"trp-custom-language-flag":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules-12x12.png",12,12,true],"woocommerce_thumbnail":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules-300x300.png",300,300,true],"woocommerce_single":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules.png",500,500,false],"woocommerce_gallery_thumbnail":["https:\/\/nex-chems.com\/wp-content\/uploads\/2026\/09\/S-23-Capsules-100x100.png",100,100,true]},"uagb_author_info":{"display_name":"admin","author_link":"https:\/\/nex-chems.com\/pt\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"A. 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