{"id":4877,"date":"2025-03-21T10:18:25","date_gmt":"2025-03-21T02:18:25","guid":{"rendered":"https:\/\/collagensei.com\/?page_id=4877"},"modified":"2026-11-06T11:10:17","modified_gmt":"2026-11-06T03:10:17","slug":"l-meti%cc%87yoni%cc%87n-tozu","status":"publish","type":"page","link":"https:\/\/collagensei.com\/tr\/bulk-amino-acids-raw-material-supplier\/l-methionine-powder\/","title":{"rendered":"L Metiyonin Tozu"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"4877\" class=\"elementor elementor-4877\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eb646d4 e-con-full e-flex e-con e-parent\" data-id=\"eb646d4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f77b3e elementor-widget elementor-widget-html\" data-id=\"0f77b3e\" data-element_type=\"widget\" data-e-type=\"widget\" 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Review USP40 specifications, batch results and bulk supply details.\nPRIMARY KEYWORD: <a class=\"wpil_keyword_link\" href=\"https:\/\/collagensei.com\/l-methionine-vs-dl-methionine\/\" target=\"_blank\"  rel=\"noopener\" title=\"L-Methionine vs DL-Methionine: Differences, Safety and Quality Guide\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4350\">l methionine<\/a> powder\nCOMMERCIAL KEYWORDS: l-methionine supplier; methionine manufacturer\nSUPPORTING TERMS: l-methionine powder; methionine powder; l methionine\n-->\n<div class=\"gensei-methionine-page\">\n  <section class=\"g-hero\">\n    <div class=\"g-wrap g-hero-grid\">\n      <div>\n        <p class=\"g-eyebrow\">L-Methionine \u00b7 Amino Acid Ingredient<\/p>\n        <h1>L-Methionine Powder<\/h1>\n        <p class=\"g-lead\">L-Methionine is supplied as a crystalline amino acid powder for supplements, nutrition powders and amino acid blends. The material is tested to a defined specification, with batch-specific analytical results available for quality review.<\/p>\n        <div class=\"g-actions\"><a class=\"g-btn\" href=\"#l-methionine-inquiry\">Request A Quote<\/a><\/div>\n      <\/div>\n      <div class=\"g-hero-image\">\n        <img src=\"https:\/\/collagensei.com\/wp-content\/uploads\/2026\/09\/L-Methionine.webp\" alt=\"L-Methionine powder ingredient\" loading=\"eager\" decoding=\"async\"\/>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-section\">\n    <div class=\"g-wrap g-identity-layout\">\n      <div class=\"g-identity-copy\">\n        <p class=\"g-kicker\">Ingredient Identity<\/p>\n        <h2>L-Methionine Powder at a Glance<\/h2>\n        <p>Supplied as white crystals or crystalline powder, L-Methionine is tested for identity, specific rotation, pH, loss on drying, inorganic components, impurities and assay.<\/p>\n      <\/div>\n      <div class=\"g-identity-facts\">\n        <div class=\"g-identity-fact\"><span>CAS Number<\/span><strong>63-68-3<\/strong><\/div>\n        <div class=\"g-identity-fact\"><span>Molecular Formula<\/span><strong>C\u2085H\u2081\u2081NO\u2082S<\/strong><\/div>\n        <div class=\"g-identity-fact\"><span>Molecular Weight<\/span><strong>149.21 g\/mol<\/strong><\/div>\n        <div class=\"g-identity-fact\"><span>Reference Standard<\/span><strong>USP40<\/strong><\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-section g-section-soft\">\n    <div class=\"g-wrap\">\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Formulation Fit<\/p>\n        <h2>Where L-Methionine Powder Fits<\/h2>\n        <p>The powder format supports several nutritional product types, with the final material specification matched to the intended processing and finished-product format.<\/p>\n      <\/div>\n      <div class=\"g-fit-list\">\n        <div class=\"g-fit-row\"><span class=\"g-fit-num\">01<\/span><h3>Capsules &amp; Tablets<\/h3><p>For single-amino-acid and multi-ingredient supplement formulas in which L-Methionine is incorporated into a dry blend before filling or compression.<\/p><\/div>\n        <div class=\"g-fit-row\"><span class=\"g-fit-num\">02<\/span><h3>Nutrition Powders<\/h3><p>For powder-based nutritional formulas and drink-mix systems where L-Methionine is added as part of the dry ingredient blend.<\/p><\/div>\n        <div class=\"g-fit-row\"><span class=\"g-fit-num\">03<\/span><h3>Amino Acid Blends &amp; Premixes<\/h3><p>For multi-amino-acid formulas and premixes that specify L-Methionine as one component of the finished ingredient system.<\/p><\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-section\" id=\"l-methionine-specification\">\n    <div class=\"g-wrap\">\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Technical Specification<\/p>\n        <h2>L-Methionine Powder Specification &amp; Batch Results<\/h2>\n        <p>The representative batch was tested against the USP40 specification for identity, physical and chemical properties, inorganic components, impurities and assay.<\/p>\n      <\/div>\n      <div class=\"g-spec-meta\">\n        <div><span>Batch<\/span><strong>20251221<\/strong><\/div>\n        <div><span>Batch Quantity<\/span><strong>2,000 kg<\/strong><\/div>\n        <div><span>Manufacture Date<\/span><strong>2025.12.21<\/strong><\/div>\n        <div><span>Retest Date<\/span><strong>2027.12.20<\/strong><\/div>\n      <\/div>\n      <div class=\"g-table-wrap\"><table>\n<thead>\n<tr>\n<th>Test Item<\/th>\n<th>Specification<\/th>\n<th>Batch Result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr class=\"g-group\">\n<td colspan=\"3\">Chemical &amp; Physical Properties<\/td>\n<\/tr>\n<tr>\n<td>Appearance<\/td>\n<td>White crystals or crystalline powder<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Identification<\/td>\n<td>Infrared Absorption<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Specific Rotation<\/td>\n<td>+22.4\u00b0 to +24.7\u00b0<\/td>\n<td class=\"g-result\">+23.8\u00b0<\/td>\n<\/tr>\n<tr>\n<td>pH<\/td>\n<td>5.6 to 6.1<\/td>\n<td class=\"g-result\">5.80<\/td>\n<\/tr>\n<tr>\n<td>Loss on Drying<\/td>\n<td>Not more than 0.30%<\/td>\n<td class=\"g-result\">0.10%<\/td>\n<\/tr>\n<tr>\n<td>Residue on Ignition<\/td>\n<td>Not more than 0.40%<\/td>\n<td class=\"g-result\">0.04%<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"3\">Inorganic Components<\/td>\n<\/tr>\n<tr>\n<td>Chloride<\/td>\n<td>Not more than 0.05%<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Sulfate<\/td>\n<td>Not more than 0.03%<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Iron<\/td>\n<td>Not more than 30 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Heavy Metals<\/td>\n<td>Not more than 15 ppm<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr class=\"g-group\">\n<td colspan=\"3\">Impurities &amp; Assay<\/td>\n<\/tr>\n<tr>\n<td>Individual Impurity<\/td>\n<td>Not more than 0.5%<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Total Impurities<\/td>\n<td>Not more than 2.0%<\/td>\n<td class=\"g-result\">Conforms<\/td>\n<\/tr>\n<tr>\n<td>Assay<\/td>\n<td>98.5% to 101.5%<\/td>\n<td class=\"g-result\">99.3%<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-section g-section-soft\">\n    <div class=\"g-wrap\">\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Formula Evaluation<\/p>\n        <h2>Before Using L-Methionine in Your Formula<\/h2>\n        <p>For capsules, tablets, powders or premixes, confirm that the selected L-Methionine specification fits your formulation and processing requirements.<\/p>\n      <\/div>\n      <div class=\"g-support-grid\">\n        <article class=\"g-info-card\">\n          <h3>Formula Requirements<\/h3>\n          <p>Share the intended dosage form and any requirements that affect blending, filling or compression when discussing the material for your formula.<\/p>\n        <\/article>\n        <article class=\"g-info-card\">\n          <h3>Sample Evaluation<\/h3>\n          <p>Sample availability can be discussed for formulation trials or comparison with an approved product specification before a commercial order.<\/p>\n        <\/article>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-section\">\n    <div class=\"g-wrap\">\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Bulk Supply<\/p>\n        <h2>Bulk L-Methionine Supply &amp; Documentation<\/h2>\n        <p>L-Methionine for bulk orders is supplied with defined packaging, storage instructions and batch documentation.<\/p>\n      <\/div>\n      <div class=\"g-supply-layout\">\n        <div class=\"g-supply-main\">\n          <h3>Packaging &amp; Storage<\/h3>\n          <p>The material is packed in drums with a two-tier polyethylene inner bag.<\/p>\n          <div class=\"g-supply-points\">\n            <div class=\"g-supply-point\"><strong>Pack Size<\/strong><span>25 kg per drum<\/span><\/div>\n            <div class=\"g-supply-point\"><strong>Inner Packaging<\/strong><span>Two-tier polyethylene bag<\/span><\/div>\n            <div class=\"g-supply-point\"><strong>Container<\/strong><span>Keep dry and tightly closed.<\/span><\/div>\n            <div class=\"g-supply-point\"><strong>Storage Environment<\/strong><span>Store in a cool, well-ventilated place away from heat and oxidizing agents.<\/span><\/div>\n          <\/div>\n        <\/div>\n        <div class=\"g-supply-side\">\n          <h3>Quality Documents<\/h3>\n          <p>The Certificate of Analysis records batch information, test specifications and analytical results for the supplied material.<\/p>\n          <div class=\"g-doc-list\">\n            <div class=\"g-doc-line\"><strong>Certificate of Analysis<\/strong><span>Batch identification, test specifications and corresponding analytical results.<\/span><\/div>\n            <div class=\"g-doc-line\"><strong>USP40 Conformance<\/strong><span>The representative batch is reported as conforming to USP40.<\/span><\/div>\n            <div class=\"g-doc-line\"><strong>Product Specification<\/strong><span>Use the applicable specification to review the quality limits required for your project.<\/span><\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <section class=\"g-inquiry-section\" id=\"l-methionine-inquiry\">\n    <div class=\"g-wrap g-inquiry-grid\">\n      <div class=\"g-inquiry-copy\">\n        <div class=\"g-inquiry-pill\">Start an Inquiry<\/div>\n        <h2>Request a Quote for L-Methionine Powder<\/h2>\n        <p>Send a short outline of your L-Methionine requirement so we can respond with the relevant commercial and product information.<\/p>\n        <div class=\"g-inquiry-context\">\n          <div class=\"g-inquiry-context-item\"><strong>Order Quantity<\/strong><span>Tell us the volume you are planning to purchase.<\/span><\/div>\n          <div class=\"g-inquiry-context-item\"><strong>Application Format<\/strong><span>Capsule, tablet, nutrition powder, amino acid blend or another finished-product format.<\/span><\/div>\n          <div class=\"g-inquiry-context-item\"><strong>Specification Requirements<\/strong><span>Include the quality standard or any additional limits used for your project.<\/span><\/div>\n          <div class=\"g-inquiry-context-item\"><strong>Destination &amp; Schedule<\/strong><span>Provide the delivery market and target purchasing schedule.<\/span><\/div>\n        <\/div>\n      <\/div>\n      <div class=\"g-form-card\">\n        <h3>Send Your Inquiry<\/h3>\n        <p style=\"margin:0 0 18px;color:#66737c;font-size:14px;line-height:1.65;\">Send us your company details and a short note about what you need.<\/p>\n        \n<div class=\"wpcf7 no-js\" id=\"wpcf7-f74-o1\" lang=\"zh-CN\" dir=\"ltr\" data-wpcf7-id=\"74\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/tr\/wp-json\/wp\/v2\/pages\/4877#wpcf7-f74-o1\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"\u7559\u8a00\u8868\u5355\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"74\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"zh_CN\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f74-o1\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<div class=\"stay-touch\">\n\t<ul>\n\t\t<li>\n\t\t\t<p><label> Name: <span class=\"wpcf7-form-control-wrap\" data-name=\"your-name\"><input size=\"40\" 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<\/section>\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>L-Methionine \u00b7 Amino Acid Ingredient L-Methionine Powder L-Methionine is supplied as a crystalline amino acid powder for supplements, nutrition powders 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