{"id":674,"date":"2026-06-07T23:42:22","date_gmt":"2026-06-07T23:42:22","guid":{"rendered":"https:\/\/biosynlab.com\/?post_type=product&#038;p=674"},"modified":"2026-06-22T12:19:19","modified_gmt":"2026-06-22T12:19:19","slug":"4-aco-met-powder","status":"publish","type":"product","link":"https:\/\/www.biosynlab.com\/?product=4-aco-met-powder","title":{"rendered":"4-AcO-MET Powder"},"content":{"rendered":"<h1>4-AcO-MET Powder<\/h1>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2 class=\"mt-6 mb-2 font-semibold text-2xl\" data-streamdown=\"heading-2\"><strong class=\"chakra-text css-0\">Product Details Table<\/strong><\/h2>\n<p>&nbsp;<\/p>\n<div class=\"css-3b43de\">\n<div class=\"chakra-table__container css-136ya47\">\n<table class=\"chakra-table css-5605sr\">\n<thead class=\"css-1gr8s87\">\n<tr class=\"css-1j3y60u\">\n<th class=\"css-gcbhyl\"><strong class=\"chakra-text css-0\">Attribute<\/strong><\/th>\n<th class=\"css-gcbhyl\"><strong class=\"chakra-text css-0\">Specification<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"css-12zq2am\">\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Brand<\/strong><\/td>\n<td class=\"css-at0zhy\">BioSynLab Research Compounds<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Product Name<\/strong><\/td>\n<td class=\"css-at0zhy\">4-AcO-MET (Metacetin)<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">IUPAC Name<\/strong><\/td>\n<td class=\"css-at0zhy\">3-[2-[Ethyl(methyl)amino]ethyl]-1H-indol-4-yl acetate<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Synonyms<\/strong><\/td>\n<td class=\"css-at0zhy\">Metacetin, 4-Acetoxy-MET<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">CAS Number<\/strong><\/td>\n<td class=\"css-at0zhy\">1445586-01-7<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Molecular Formula<\/strong><\/td>\n<td class=\"css-at0zhy\">C\u2081\u2085H\u2082\u2080N\u2082O\u2082<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Molecular Weight<\/strong><\/td>\n<td class=\"css-at0zhy\">260.33 g\/mol<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Purity<\/strong><\/td>\n<td class=\"css-at0zhy\">\u226599.0% (HPLC Verified)<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Appearance<\/strong><\/td>\n<td class=\"css-at0zhy\">White to Off-White Crystalline Powder<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Form<\/strong><\/td>\n<td class=\"css-at0zhy\">Freebase Powder (Micronized)<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Particle Size<\/strong><\/td>\n<td class=\"css-at0zhy\">50-100 microns<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Storage<\/strong><\/td>\n<td class=\"css-at0zhy\">-20\u00b0C, Argon Atmosphere, Desiccated<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Packaging<\/strong><\/td>\n<td class=\"css-at0zhy\">Amber Borosilicate Vials with PTFE Seals<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Available Quantities<\/strong><\/td>\n<td class=\"css-at0zhy\">250mg, 500mg, 1g, 5g, 10g<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Documentation<\/strong><\/td>\n<td class=\"css-at0zhy\">COA, HPLC, NMR, MSDS, Stability Data<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Shipping<\/strong><\/td>\n<td class=\"css-at0zhy\">Cryogenic Packaging Available<\/td>\n<\/tr>\n<tr class=\"css-1j3y60u\">\n<td class=\"css-at0zhy\"><strong class=\"chakra-text css-0\">Origin<\/strong><\/td>\n<td class=\"css-at0zhy\">EU\/GMP Certified Laboratory<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h3 data-streamdown=\"heading-3\"><\/h3>\n<h3 class=\"mt-6 mb-2 font-semibold text-xl\" data-streamdown=\"heading-3\"><strong class=\"chakra-text css-0\">Premium 4-AcO-MET Powder \u2013 Laboratory Grade Research Chemical<\/strong><\/h3>\n<p><strong class=\"chakra-text css-0\">biosynlab<\/strong>\u00a0supplies pharmaceutical-grade\u00a0<a href=\"https:\/\/biosynlab.com\/\"><strong class=\"chakra-text css-0\">4-AcO-MET Powder<\/strong><\/a>\u00a0for sophisticated scientific research and analytical applications. As a trusted vendor of acetylated tryptamines to laboratories across the\u00a0<strong class=\"chakra-text css-0\">USA, United Kingdom, and European Union<\/strong>, we deliver consistently pure, accurately measured compounds essential for reproducible experimental protocols.<\/p>\n<h4 class=\"mt-6 mb-2 font-semibold text-lg\" data-streamdown=\"heading-4\"><strong class=\"chakra-text css-0\">Chemical Composition &amp; Structure<\/strong><\/h4>\n<p><strong class=\"chakra-text css-0\">4-AcO-MET<\/strong>\u00a0(systematic name:\u00a0<a href=\"https:\/\/biosynlab.com\/\"><strong class=\"chakra-text css-0\">4-Acetoxy-N-methyl-N-ethyltryptamine<\/strong>)<\/a> is a synthetic indolealkylamine compound featuring an acetoxy functional group at the 4-position of the indole ring. As the N-acetylated analog of 4-HO-MET, this compound serves as a prodrug form in pharmacological research contexts. The molecular formula\u00a0<strong class=\"chakra-text css-0\">C\u2081\u2085H\u2082\u2080N\u2082O\u2082<\/strong>\u00a0yields a molecular weight of 260.33 g\/mol.<\/p>\n<p>Commonly designated\u00a0<strong class=\"chakra-text css-0\">Metacetin<\/strong>\u00a0within research communities, 4-AcO-MET has emerged as a compound of significant interest in studies examining prodrug pharmacokinetics, deacetylation pathways, and comparative analysis with hydroxylated tryptamine counterparts. The acetyl ester modification alters lipophilicity profiles compared to 4-HO-MET, making it valuable for absorption and metabolic research.<\/p>\n<h4 class=\"mt-6 mb-2 font-semibold text-lg\" data-streamdown=\"heading-4\"><strong class=\"chakra-text css-0\">Research Applications<\/strong><\/h4>\n<p>Our\u00a0<strong class=\"chakra-text css-0\">crystalline powder<\/strong>\u00a0serves as standardized reference material for:<\/p>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\">Prodrug metabolism and bioactivation studies<\/li>\n<li class=\"css-xs9fqv\">Esterase enzyme interaction assays<\/li>\n<li class=\"css-xs9fqv\">Comparative pharmacokinetic profiling with 4-HO-MET<\/li>\n<li class=\"css-xs9fqv\">Receptor binding affinity studies (5-HT\u2082A, 5-HT\u2082C)<\/li>\n<li class=\"css-xs9fqv\">Analytical method development and validation<\/li>\n<li class=\"css-xs9fqv\">Forensic toxicology reference standards<\/li>\n<li class=\"css-xs9fqv\">Structure-activity relationship (SAR) investigations<\/li>\n<\/ul>\n<p>Researchers utilize biosynlab 4-AcO-MET alongside related acetylated tryptamines including 4-AcO-DMT, 4-AcO-MiPT, 4-AcO-DET, and hydroxylated counterparts to advance understanding of indolealkylamine structure-pharmacology relationships.<\/p>\n<h4 class=\"mt-6 mb-2 font-semibold text-lg\" data-streamdown=\"heading-4\"><strong class=\"chakra-text css-0\">Quality Control &amp; Analytical Verification<\/strong><\/h4>\n<p>Every production batch undergoes rigorous multi-phase testing:<\/p>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">HPLC Purity Analysis:<\/strong>\u00a0\u226598.5% confirmed via reverse-phase chromatography<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">NMR Spectroscopy:<\/strong>\u00a0\u00b9H-NMR and \u00b9\u00b3C-NMR structural confirmation<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Mass Spectrometry:<\/strong>\u00a0ESI-MS molecular weight verification<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Melting Point Determination:<\/strong>\u00a0140-145\u00b0C (characteristic range)<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Residual Solvent Analysis:<\/strong>\u00a0GC-HS detection &lt;100ppm total<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Heavy Metals Screening:<\/strong>\u00a0ICP-MS for Class 1 and 2 elements<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Loss on Drying:<\/strong>\u00a0\u22640.5% moisture content<\/li>\n<\/ul>\n<p>Certificate of Analysis (COA) and Material Safety Data Sheet (MSDS) included with each shipment.<\/p>\n<h4 class=\"mt-6 mb-2 font-semibold text-lg\" data-streamdown=\"heading-4\"><strong class=\"chakra-text css-0\">Powder Characteristics &amp; Handling<\/strong><\/h4>\n<p>biosynlab 4-AcO-MET Powder exhibits:<\/p>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Appearance:<\/strong>\u00a0Fine crystalline to granular off-white\/beige powder<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Texture:<\/strong>\u00a0Free-flowing, non-hygroscopic under proper storage<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Homogeneity:<\/strong>\u00a0Batch-micronized for consistent particle size distribution<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Stability:<\/strong>\u00a0Enhanced stability profile compared to hydroxylated analogs<\/li>\n<\/ul>\n<p>Recommended handling: Use analytical balance (0.001g precision), anti-static weighing paper, and appropriate containment to minimize airborne particulate.<\/p>\n<p>All shipments include tracking, discrete packaging, and customs-compliant documentation.<\/p>\n<h4 class=\"mt-6 mb-2 font-semibold text-lg\" data-streamdown=\"heading-4\"><strong class=\"chakra-text css-0\">Packaging &amp; Presentation<\/strong><\/h4>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Primary:<\/strong>\u00a0Amber borosilicate glass vial (pharmaceutical grade)<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Seal:<\/strong>\u00a0PTFE-lined polypropylene screw cap<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Secondary:<\/strong>\u00a0Anti-static mylar pouch with desiccant packet<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Tertiary:<\/strong>\u00a0Opaque padded mailer (no product identification)<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Labeling:<\/strong>\u00a0Chemical name, CAS number, batch code, storage instructions<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Documentation:<\/strong>\u00a0COA, MSDS, handling guidelines included<\/li>\n<\/ul>\n<hr class=\"my-6 border-border\" data-streamdown=\"horizontal-rule\" \/>\n<h2 class=\"mt-6 mb-2 font-semibold text-2xl\" data-streamdown=\"heading-2\"><strong class=\"chakra-text css-0\">\u26a0\ufe0f RESPONSIBLE RESEARCH DISCLAIMER<\/strong><\/h2>\n<p><strong class=\"chakra-text css-0\">FOR LABORATORY RESEARCH ONLY \u2013 NOT FOR HUMAN CONSUMPTION<\/strong><\/p>\n<p><strong class=\"chakra-text css-0\">biosynlab<\/strong>\u00a0strictly sells 4-AcO-MET Powder for\u00a0<strong class=\"chakra-text css-0\">in vitro scientific research, analytical reference standards, and chemical studies only<\/strong>. This product is\u00a0<strong class=\"chakra-text css-0\">NOT intended for human consumption, animal administration, or any in vivo application<\/strong>.<\/p>\n<p><strong class=\"chakra-text css-0\">By purchasing, you certify:<\/strong><\/p>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\">You are 18+ years of age with legal authority to purchase research chemicals<\/li>\n<li class=\"css-xs9fqv\">You are a qualified researcher, academic institution, or certified analytical laboratory<\/li>\n<li class=\"css-xs9fqv\">You understand 4-AcO-MET is not FDA, EMA, or DEA approved for medical use<\/li>\n<li class=\"css-xs9fqv\">You acknowledge this compound may be controlled or restricted in your jurisdiction<\/li>\n<li class=\"css-xs9fqv\">You will utilize appropriate PPE: nitrile gloves, safety goggles, N95 respirator, fume hood<\/li>\n<li class=\"css-xs9fqv\">You will maintain secure storage (-20\u00b0C, locked container, access restricted)<\/li>\n<li class=\"css-xs9fqv\">You assume full legal responsibility for regulatory compliance<\/li>\n<\/ul>\n<p><strong class=\"chakra-text css-0\">Safety Information:<\/strong><\/p>\n<ul class=\"css-tu0njr\" role=\"list\">\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">CAS Number:<\/strong>\u00a01023391-14-9<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">UN Number:<\/strong>\u00a0Not classified (research chemical)<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Hazard Statements:<\/strong>\u00a0H315 (skin irritation), H319 (eye irritation), H335 (respiratory irritation)<\/li>\n<li class=\"css-xs9fqv\"><strong class=\"chakra-text css-0\">Precautionary:<\/strong>\u00a0P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338<\/li>\n<\/ul>\n<p><strong class=\"chakra-text css-0\">Emergency:<\/strong>\u00a0In case of exposure, rinse immediately with water. Seek medical attention and provide physicians with CAS number and chemical name. Do NOT induce vomiting if ingested.<\/p>\n<p><strong class=\"chakra-text css-0\">Regulatory Notice:<\/strong>\u00a04-AcO-MET legal status varies by jurisdiction. Researchers must verify local laws regarding possession, importation, and use of substituted tryptamines. biosynlab assumes no liability for misuse, regulatory violations, or unauthorized applications.<\/p>\n<hr class=\"my-6 border-border\" data-streamdown=\"horizontal-rule\" \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>4-AcO-MET Powder &nbsp; &nbsp; Product Details Table &nbsp; Attribute Specification Brand BioSynLab Research Compounds Product Name 4-AcO-MET (Metacetin) IUPAC Name 3-[2-[Ethyl(methyl)amino]ethyl]-1H-indol-4-yl acetate Synonyms Metacetin, 4-Acetoxy-MET CAS Number 1445586-01-7 Molecular Formula C\u2081\u2085H\u2082\u2080N\u2082O\u2082 Molecular Weight 260.33 g\/mol Purity \u226599.0% (HPLC Verified) Appearance White to Off-White Crystalline Powder Form Freebase Powder (Micronized) Particle Size 50-100 microns Storage -20\u00b0C, [&hellip;]<\/p>\n","protected":false},"featured_media":688,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[4045,3380],"product_tag":[22780,22787,22794,22783,22697,22727,22782,22792,22698,22789,22798,22699,22790,22725,22726,22679,22795,22800,22663,22784,22799,22785,22797,22793,22796,22781,22786,22788,22791],"class_list":["post-674","product","type-product","status-publish","has-post-thumbnail","product_cat-4-aco-met","product_cat-tryptamines","product_tag-2-4-day-express-to-london","product_tag-3-5-day-delivery-to-california","product_tag-arizona","product_tag-belfast","product_tag-birmingham","product_tag-bristol","product_tag-cardiff","product_tag-colorado","product_tag-edinburgh","product_tag-florida","product_tag-georgia","product_tag-glasgow","product_tag-illinois","product_tag-leeds","product_tag-liverpool","product_tag-manchester","product_tag-massachusetts","product_tag-michigan","product_tag-new-york","product_tag-newcastle","product_tag-north-carolina","product_tag-nottingham","product_tag-ohio","product_tag-oregon","product_tag-pennsylvania","product_tag-sheffield","product_tag-southampton","product_tag-texas","product_tag-washington","first","instock","shipping-taxable","purchasable","product-type-variable"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>4-AcO-MET research chemical<\/title>\n<meta name=\"description\" content=\"Buy 4-AcO-MET powder online at BioSynLab. \u226599% purity, lab-tested, discrete shipping USA\/UK\/Europe. COA &amp; HPLC verified. Secure research supply.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.biosynlab.com\/product\/4-aco-met-powder\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"4-AcO-MET research chemical\" \/>\n<meta property=\"og:description\" content=\"Buy 4-AcO-MET powder online at BioSynLab. \u226599% purity, lab-tested, discrete shipping USA\/UK\/Europe. COA &amp; HPLC verified. 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