{"id":10864,"date":"2026-03-29T18:48:13","date_gmt":"2026-03-29T11:48:13","guid":{"rendered":"https:\/\/chemicalexpressth.com\/?p=10864"},"modified":"2026-08-11T15:44:07","modified_gmt":"2026-08-11T08:44:07","slug":"organic-acids-reference-materials-merck","status":"publish","type":"post","link":"https:\/\/chemicalexpressth.com\/th\/articles\/product-guide-articles\/organic-acids-reference-materials-merck\/","title":{"rendered":"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &#038; Diagnostics"},"content":{"rendered":"<style>  .chx-standalone-article h1 {       color: #222 !important;       line-height: 1.2 !important;       font-weight: bold !important;       text-align: center !important;       margin-top: 40px !important;       margin-bottom: 30px !important;      text-transform: none !important;   }  .chx-standalone-article h2 {      color: #24326d !important;      font-weight: bold !important;      text-transform: none !important; 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}  }<\/style>\n<div class=\"chx-standalone-article\">\n<div data-elementor-type=\"wp-post\" data-elementor-id=\"10864\" class=\"elementor elementor-10864\" data-elementor-post-type=\"post\">\n<div class=\"elementor-element elementor-element-6bfb9b66 e-flex e-con-boxed e-con e-parent\" data-id=\"6bfb9b66\" data-element_type=\"container\" data-e-type=\"container\">\n<div class=\"e-con-inner\">\n<div class=\"elementor-element elementor-element-60a2a926 elementor-widget elementor-widget-text-editor\" data-id=\"60a2a926\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n<div class=\"elementor-widget-container\">\n<h1>High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics<\/h1>\n<div style=\"margin-bottom: 32px; text-align: center;\"><img decoding=\"async\" class=\"lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img data-src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"data:image\/gif;base64,R0lGODlhAQABAIAAAAAAAP\/\/\/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\" \/><noscript><img decoding=\"async\" class=\"lazyload lazyload lazyload lazyload lazyload lazyload lazyload\" style=\"width: 100%; max-width: 800px; height: auto; border-radius: 0px !important;\" src=\"https:\/\/chemicalexpressth.com\/wp-content\/uploads\/2026\/03\/High-Quality-Organic-Acids-Reference-Materials-by-Merck-Precision-Standards-for-Metabolic-Analysis-Diagnostics.png\" alt=\"High-Quality Organic Acids Reference Materials by Merck: Precision Standards for Metabolic Analysis &amp; Diagnostics\"><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/noscript><\/div>\n<p>Accurate metabolic analysis is critical in detecting inborn errors and supporting clinical diagnostics. Organic acid disorders require precise identification of physiologic intermediates, demanding high-quality reference materials of organic acids. This page highlights Merck&#8217;s certified organic acid standards, offering both native and stable isotope-labeled options tailored for reliable preparation of calibrators and controls for GC\/MS and LC\/MS in clinical and research laboratories.<\/p>\n<h2>Why choose high-quality reference materials of organic acids<\/h2>\n<ul>\n<li><strong>Accurate metabolic analysis:<\/strong> Supports precise analysis of physiologic intermediates involved in a variety of metabolic pathways.<\/li>\n<li><strong>Reliable detection of inborn errors of metabolism:<\/strong> Suitable for use in the detection of inborn errors of metabolism by GC\/MS or LC\/MS.<\/li>\n<li><strong>Diagnostic support:<\/strong> Helps enable organic acids analysis used routinely in diagnostic tests and newborn screening programs.<\/li>\n<li><strong>Preparation of essential analytical materials:<\/strong> Provides dependable standards for building and validating organic acids calibration curves and quality control samples.<\/li>\n<li><strong>Workflow flexibility:<\/strong> Supports laboratories using either GC\/MS or LC\/MS for organic acids analysis.<\/li>\n<\/ul>\n<h2>What these organic acids reference materials include<\/h2>\n<ul>\n<li><b>Analytical Standards and Certified Reference Materials<\/b>: High-quality analytical standards and certified reference materials (CRMs) of organic acids.<\/li>\n<li><b>Internal Standard Options<\/b>: Native and stable isotope-labeled internal standards included within the organic acids reference materials portfolio.<\/li>\n<li><b>Preparation Suitability<\/b>: Suitable for preparing calibrators, controls, and internal standards across clinical and research workflows.<\/li>\n<\/ul>\n<h2>Applications and usage of organic acid reference materials<\/h2>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>Use as certified calibrators, quality control samples, and internal standards in organic acids analysis by GC\/MS and LC\/MS.<\/li>\n<li>Detection of inborn errors of metabolism by GC\/MS or LC\/MS.<\/li>\n<li>Support for routine organic acids testing in clinical diagnostic workflows.<\/li>\n<li>Integration into organic acids panels used in newborn screening programs.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Organic Acids Certified Reference Material <\/h2>\n<div class=\"res-table-wrapper\">\n<table style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd;\">\n<thead>\n<tr style=\"background-color: #24326d; color: #ffffff;\">\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Potential New Products<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Pack Size<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Methylmalonic acid<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1.0 mg\/mL in acetonitrile<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Methyl-D<sub>3<\/sub>-malonic acid<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1.0 mg\/mL in acetonitrile<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Methylmalonic acid-<sup>13<\/sup>C<sub>4<\/sub><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">100 \u00b5g\/mL in acetonitrile<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Valproic acid<\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1.0 mg\/mL in methanol<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">Valproic acid-D<sub>6<\/sub><\/td>\n<td style=\"padding: 10px; border: 1px solid #ddd;\">1.0 mg\/mL in methanol<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>Organic Acids Analytical Standard <\/h2>\n<div class=\"res-table-wrapper\">\n<table style=\"width: 100%; border-collapse: collapse; font-family: ; border: 1px solid #ddd;\">\n<thead>\n<tr style=\"background-color: #24326d; color: #ffffff;\">\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left;\">Potential New Products<\/th>\n<th style=\"padding: 12px; border: 1px solid #ddd; text-align: left; width: 30%;\">Pack Size<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Adipic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>\u03b1-Aminoadipic acid (DL-2-Aminoadipic acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>\u03b1-Aminoadipic acid (L-2-Aminoadipic acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>\u03b3-Aminobutyric acid<\/td>\n<td>250 mg<\/td>\n<\/tr>\n<tr>\n<td>\u03b3-Aminobutyric acid<\/td>\n<td>50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>\u03b1-Aminobutyric acid (DL-2-Aminobutyric acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>\u03b2-Aminoisobutyric acid (L-3-Aminoisobutyric acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>L-Argininosuccinic acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Aspartic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Butyric acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Butyric acid<\/td>\n<td>100 mL<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Butyric acid<\/td>\n<td>5 mL<\/td>\n<\/tr>\n<tr>\n<td>3-Carboxy-4-methyl-5-propyl-2-furanpropionic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Citric acid<\/td>\n<td>500 mg<\/td>\n<\/tr>\n<tr>\n<td>Citric acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Dehydroquinic acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>3-Deoxy-2-keto-6-phosphogluconic acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Deoxy-D-arabino-hexonic acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>4-Deoxy-D-erythronic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>4-Deoxy-L-erythronic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>N\u00b9,N\u00b9\u00b2-Diacetylspermine hydrochloride<\/td>\n<td>50 mg\/100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(2R,3S)-2,3-dihydroxybutanoic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>2,4-Dihydroxybutanoic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(2S,3R)-2,3-dihydroxybutanoic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>DL-3,3-Dimethylmalic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(2RS)-2-Ethyl-2-methylpentanoic acid<\/td>\n<td>50 mg<\/td>\n<\/tr>\n<tr>\n<td>3-Ethylmalic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Ethylmalonic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Ferulic acid<\/td>\n<td>50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Ferulic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Fumaric acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Fumarylacetone<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Glutaconic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Glutaric acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Glutaric semialdehyde<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>L-Glyceric acid sodium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Hippuric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Hippuric acid-(phenyl-\u00b9\u00b3C\u2086)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Homogentisic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Homovanillic acid<\/td>\n<td>25 mg<\/td>\n<\/tr>\n<tr>\n<td>4-hydroxy-3,3-dimethyl-2-oxo-butanoic acid (2-Dehydropantoic acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>DL-4-Hydroxy-2-ketoglutaric acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>2-Hydroxy-3-methylvaleric acid, mixture of diastereomers<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>2-Hydroxyadipic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>(R)-3-Hydroxybutyric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Hydroxyglutaric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>D-\u03b1-Hydroxyglutaric acid disodium salt (D-2-Hydroxyglutaric acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>L-\u03b1-Hydroxyglutaric acid disodium salt (L-2-Hydroxyglutaric acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>D-\u03b1-Hydroxyglutaric acid-\u00b9\u00b3C\u2085 disodium salt ([\u00b9\u00b3C\u2085]-D-2-Hydroxyglutaric acid)<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>L-\u03b1-Hydroxyglutaric acid-\u00b9\u00b3C\u2085 disodium salt ([\u00b9\u00b3C\u2085]-L-2-Hydroxyglutaric acid)<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr>\n<td>5-Hydroxyindole-3-acetic acid (5HIAA)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Sodium (R)-\u03b2-hydroxyisobutyrate<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>4-Hydroxyisovaleric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>2-(Hydroxymethyl)butyric acid sodium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>3-(4-Hydroxyphenyl)-DL-lactic acid-\u00b9\u00b3C\u2089<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-(3-Hydroxyphenyl)propionic acid<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr>\n<td>(2RS)-2-(4-Hydroxyphenyl)propionic acid<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-(3-Hydroxyphenyl)-3-hydroxypropanoic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>4-Hydroxyphenylacetic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>4-Hydroxyphenylpyruvic acid IS (4-Hydroxyphenylpyruvic acid-\u00b9\u00b3C\u2089)<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr>\n<td>Isovaleric acid<\/td>\n<td>1 mL\/5 mL<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>2-Keto-3-deoxy-D-galactonic acid lithium salt<\/td>\n<td>10 mg<\/td>\n<\/tr>\n<tr>\n<td>\u03b1-Ketoglutaric acid \/ 2-Ketoglutaric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Kynurenic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>L-Kynurenine<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>L-(+)-Lactic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Maleic acid<\/td>\n<td>1 g<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Malic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Malonic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(R) 2-Methyl-3-ureidopropionic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>(Z)-3-Methylglutaconic acid<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(E)-3-Methylglutaconic acid<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr>\n<td>3-Methylglutaconic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(E)-2-Methylglutaconic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>(Z)-2-Methylglutaconic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Methylglutaric acid-\u00b9\u00b3C\u2084 (3-Methyl-\u00b9\u00b3C-glutaric acid-1,2,3-\u00b9\u00b3C\u2083)<\/td>\n<td>1 mg\/5 mg<\/td>\n<\/tr>\n<tr>\n<td>(2RS,3SR)-2-Methylisocitric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Methylmalic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>2-Methyl-trans-aconic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(RS)-Mevalonic acid<\/td>\n<td>5 mg<\/td>\n<\/tr>\n<tr>\n<td>(S)-Mevalonic acid lithium salt<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>(\u00b1)-Mevalonic acid-d\u2083<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr>\n<td>trans,trans-Muconic acid-\u00b9\u00b3C\u2086<\/td>\n<td>1 mg\/10 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Octanoic acid<\/td>\n<td>50 mg<\/td>\n<\/tr>\n<tr>\n<td>Octanoic acid<\/td>\n<td>5 mL<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>trans-2-Octenedioic acid (2-Octene-1,8-dioic acid)<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>L-Ornithine<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>2-Oxoadipic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>Phenylpyruvic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Propionic acid<\/td>\n<td>1 mL\/5 mL<\/td>\n<\/tr>\n<tr>\n<td>3-Propylmalic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Pyroglutamic acid; L-Proline<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr>\n<td>Succinic acid<\/td>\n<td>100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>3-Sulfopyruvic acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>(\u00b1)-Ureidoglycolic acid sodium salt<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>DL-3-Ureidoisobutyric acid<\/td>\n<td>10 mg\/50 mg<\/td>\n<\/tr>\n<tr>\n<td>cis-Vaccenic acid<\/td>\n<td>10 mg\/100 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>DL-Vanillactic acid<\/td>\n<td>10 mg\/50 mg\/250 mg<\/td>\n<\/tr>\n<tr>\n<td>Vanillic acid<\/td>\n<td>50 mg<\/td>\n<\/tr>\n<tr style=\"background-color: #f9f9f9;\">\n<td>Vanillylmandelic acid<\/td>\n<td>25 mg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Chemical Express, with over 23 years of expertise, is the official distributor of Merck in Thailand. You can conveniently purchase Merck\u2019s high-quality reference materials of organic acids, as well as related products, through Chemical Express for reliable results in every analytical application.<\/p>\n<div style=\"text-align: center; margin-top: 64px; padding-bottom: 60px;\">\n<h3 style=\"margin-bottom: 8px;\">Have questions about organic acids reference materials or ready to order?<\/h3>\n<p>Simply fill out our Inquiry Form or chat with us instantly on Line using the buttons below.<br \/>We&#8217;re here to help!<\/p>\n<div style=\"display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px;\"><a style=\"display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; background: #0b5ed7; color: #ffffff; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px; line-height: 1; white-space: nowrap;\" href=\"https:\/\/forms.zohopublic.com\/chatchawan1\/form\/WebsiteLeadFormINQUIRYFORM\/formperma\/oH9iL6pKdhH5WoJRahWoHuc5H_68uNoURPhu7cgU_rY?utm_source=n8n&amp;utm_medium=article&amp;utm_campaign=content2026_03_Product&amp;utm_content=organic-acids-reference-materials-merck&amp;utm_term=inquiry_form&amp;utm_id=CONTENT_2026_03_Product\" target=\"_blank\" rel=\"noopener noreferrer\" data-track=\"enquiry_cta\" data-intent=\"lead\">Submit Inquiry<\/a><br \/><a style=\"display: inline-flex; align-items: center; justify-content: center; padding: 14px 28px; background: #06c755; color: #ffffff; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 16px; line-height: 1; white-space: nowrap;\" href=\"https:\/\/liff.line.me\/2004801212-fkTuG4m6?utm_source=website&#038;utm_medium=article&#038;utm_campaign=product_guide_2026&#038;utm_content=product_guide_article&#038;utm_term=add_line&#038;utm_id=product_guide_2026\" target=\"_blank\" rel=\"noopener noreferrer\" data-track=\"line_cta\" data-intent=\"add_line\">Add LINE<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Order high-quality organic acid reference materials by Merck from Chemical Express, the official distributor of Merck in Thailand. 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