{"id":4874,"date":"2025-03-21T10:12:51","date_gmt":"2025-03-21T02:12:51","guid":{"rendered":"https:\/\/collagensei.com\/?page_id=4874"},"modified":"2026-09-21T15:20:55","modified_gmt":"2026-09-21T07:20:55","slug":"l%e3%82%b7%e3%82%b9%e3%83%86%e3%82%a4%e3%83%b3%e5%a1%a9%e9%85%b8%e5%a1%a9","status":"publish","type":"page","link":"https:\/\/collagensei.com\/ja\/bulk-amino-acids-raw-material-supplier\/l-cysteine-hydrochloride\/","title":{"rendered":"L-\u30b7\u30b9\u30c6\u30a4\u30f3\u5869\u9178\u5869"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"4874\" class=\"elementor elementor-4874\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-abde177 e-con-full e-flex e-con e-parent\" data-id=\"abde177\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b67ce4a elementor-widget elementor-widget-html\" data-id=\"b67ce4a\" data-element_type=\"widget\" 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.gensei-cysteine-page .g-category-nav{\n    gap:9px;\n    flex-wrap:wrap;\n  }\n\n  .gensei-cysteine-page .g-category-divider{\n    display:none;\n  }\n\n  .gensei-cysteine-page .g-inquiry-section{\n    padding:52px 0;\n  }\n\n  .gensei-cysteine-page .g-form-panel{\n    padding:23px 18px 20px;\n    border-radius:18px;\n  }\n\n  .gensei-cysteine-page .g-inquiry-copy h2{\n    font-size:38px;\n  }\n\n  .gensei-cysteine-page table{\n    min-width:900px;\n  }\n}\n<\/style>\n\n<div class=\"gensei-cysteine-page\">\n\n  <section class=\"g-hero\">\n    <div class=\"g-wrap g-hero-grid\">\n\n      <div>\n        <p class=\"g-eyebrow\">Amino Acid Ingredient<\/p>\n\n        <h1>L-Cysteine Hydrochloride Supplier | Bulk L-Cysteine HCl Powder<\/h1>\n\n        <p class=\"g-lead\">\n          L-Cysteine Hydrochloride is a white crystalline ingredient used across food,\n          flavor, nutrition and pharmaceutical applications. Available as anhydrous or\n          monohydrate material, it can be selected according to the required chemical form\n          and product specification.\n        <\/p>\n\n        <div class=\"g-actions\">\n          <a class=\"g-btn g-btn-primary\" href=\"#l-cysteine-inquiry\">\n            Request a Quote\n          <\/a>\n        <\/div>\n      <\/div>\n\n      <div class=\"g-hero-image\">\n        <img\n          src=\"https:\/\/collagensei.com\/wp-content\/uploads\/2026\/09\/L-Cysteine-Hydrochloride.webp\"\n          alt=\"L-Cysteine Hydrochloride powder\"\n          loading=\"eager\"\n          decoding=\"async\"\n        \/>\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Product Forms<\/p>\n\n        <h2>Anhydrous and Monohydrate L-Cysteine Hydrochloride<\/h2>\n\n        <p>\n          The two forms are identified by different CAS numbers, formulas and molecular\n          weights. The required form should be specified when evaluating a formulation\n          or preparing a purchase specification.\n        <\/p>\n      <\/div>\n\n      <div class=\"g-two-col\">\n\n        <article class=\"g-info-card\">\n          <h3>L-Cysteine Hydrochloride Anhydrous<\/h3>\n\n          <p>\n            The anhydrous form contains no crystallization water and is represented by\n            CAS 52-89-1. It is supplied as white crystals or crystalline powder.\n          <\/p>\n\n          <div class=\"g-formula\">\n            <div class=\"g-formula-item\">\n              <span>CAS<\/span>\n              <strong>52-89-1<\/strong>\n            <\/div>\n\n            <div class=\"g-formula-item\">\n              <span>Formula<\/span>\n              <strong>C\u2083H\u2087NO\u2082S\u00b7HCl<\/strong>\n            <\/div>\n\n            <div class=\"g-formula-item\">\n              <span>Molecular Weight<\/span>\n              <strong>157.62 g\/mol<\/strong>\n            <\/div>\n          <\/div>\n        <\/article>\n\n\n        <article class=\"g-info-card\">\n          <h3>L-Cysteine Hydrochloride Monohydrate<\/h3>\n\n          <p>\n            The monohydrate form includes one molecule of crystallization water and is\n            represented by CAS 7048-04-6. It has a higher molecular weight than the\n            anhydrous form because of the added water molecule.\n          <\/p>\n\n          <div class=\"g-formula\">\n            <div class=\"g-formula-item\">\n              <span>CAS<\/span>\n              <strong>7048-04-6<\/strong>\n            <\/div>\n\n            <div class=\"g-formula-item\">\n              <span>Formula<\/span>\n              <strong>C\u2083H\u2087NO\u2082S\u00b7HCl\u00b7H\u2082O<\/strong>\n            <\/div>\n\n            <div class=\"g-formula-item\">\n              <span>Molecular Weight<\/span>\n              <strong>175.63 g\/mol<\/strong>\n            <\/div>\n          <\/div>\n        <\/article>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section g-section-soft\" id=\"l-cysteine-specification\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Quality Profile<\/p>\n\n        <h2>AJI92 Specification &amp; Test Results<\/h2>\n\n        <p>\n          The quality profile below follows the supplied Certificate of Analysis for\n          L-Cysteine Hydrochloride Anhydrous tested against AJI92.\n        <\/p>\n      <\/div>\n\n      <div class=\"g-coa-meta\">\n\n        <div class=\"g-coa-meta-item\">\n          <span>Batch Number<\/span>\n          <strong>CP1320120201<\/strong>\n        <\/div>\n\n        <div class=\"g-coa-meta-item\">\n          <span>Quantity<\/span>\n          <strong>1,000 kg<\/strong>\n        <\/div>\n\n        <div class=\"g-coa-meta-item\">\n          <span>Manufacture Date<\/span>\n          <strong>Dec. 02, 2020<\/strong>\n        <\/div>\n\n        <div class=\"g-coa-meta-item\">\n          <span>Analysis Date<\/span>\n          <strong>Dec. 03, 2020<\/strong>\n        <\/div>\n\n      <\/div>\n\n\n      <div class=\"g-quality-grid\">\n\n        <article class=\"g-quality-card\">\n          <h3>Physical &amp; Optical<\/h3>\n\n          <p>\n            The certificate reports appearance as white crystals or crystalline powder,\n            specific rotation within the stated AJI92 range, and a clear, colorless\n            solution with 99.02% transmittance.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-quality-card\">\n          <h3>Purity &amp; Inorganic Limits<\/h3>\n\n          <p>\n            The certificate includes assay, heavy metals, iron, arsenic, residue on\n            ignition and loss on drying as part of the analytical profile.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-quality-card\">\n          <h3>Additional Quality Checks<\/h3>\n\n          <p>\n            Other amino acids are evaluated chromatographically, while pH is reported\n            as a defined release parameter for the tested material.\n          <\/p>\n        <\/article>\n\n      <\/div>\n\n\n      <div class=\"g-table-wrap\">\n\n        <table>\n\n          <thead>\n            <tr>\n              <th>Test Item<\/th>\n              <th>Test Standard<\/th>\n              <th>Test Result<\/th>\n            <\/tr>\n          <\/thead>\n\n          <tbody>\n\n            <tr>\n              <td>Appearance<\/td>\n              <td>White crystals or crystalline powder<\/td>\n              <td class=\"g-result\">Qualified<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Specific rotation [\u03b1]\u00b2\u2070\u1d30<\/td>\n              <td>+5.6\u00b0 to +8.9\u00b0<\/td>\n              <td class=\"g-result\">+6.0\u00b0<\/td>\n            <\/tr>\n\n            <tr>\n              <td>State of solution (Transmittance)<\/td>\n              <td>Clear and colorless; not less than 98.0%<\/td>\n              <td class=\"g-result\">99.02%<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Heavy metals (Pb)<\/td>\n              <td>Not more than 15 ppm<\/td>\n              <td class=\"g-result\">&lt;15 ppm<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Residue on ignition<\/td>\n              <td>Not more than 0.1%<\/td>\n              <td class=\"g-result\">0.05%<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Iron (Fe)<\/td>\n              <td>Not more than 15 ppm<\/td>\n              <td class=\"g-result\">&lt;15 ppm<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Loss on drying<\/td>\n              <td>Not more than 1.0%<\/td>\n              <td class=\"g-result\">0.28%<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Other amino acids<\/td>\n              <td>Chromatographically<\/td>\n              <td class=\"g-result\">Qualified<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Arsenic (As\u2082O\u2083)<\/td>\n              <td>Not more than 1 ppm<\/td>\n              <td class=\"g-result\">&lt;1 ppm<\/td>\n            <\/tr>\n\n            <tr>\n              <td>Assay<\/td>\n              <td>98.0 to 102.0%<\/td>\n              <td class=\"g-result\">99.7%<\/td>\n            <\/tr>\n\n            <tr>\n              <td>pH<\/td>\n              <td>1.5 to 2.0<\/td>\n              <td class=\"g-result\">1.7<\/td>\n            <\/tr>\n\n          <\/tbody>\n\n        <\/table>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Applications<\/p>\n\n        <h2>L-Cysteine Hydrochloride Applications<\/h2>\n\n        <p>\n          L-Cysteine Hydrochloride appears in several ingredient and manufacturing\n          environments. The exact grade and specification depend on the intended use.\n        <\/p>\n      <\/div>\n\n\n      <div class=\"g-app-grid\">\n\n        <article class=\"g-app\">\n          <span class=\"g-app-num\">01<\/span>\n\n          <h3>Food &amp; Bakery<\/h3>\n\n          <p>\n            Food applications include dough-related processing and flour treatment.\n            L-cysteine monohydrochloride is also listed for flavor-related and nutrient\n            supplement functions in U.S. food-use records.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-app\">\n          <span class=\"g-app-num\">02<\/span>\n\n          <h3>Flavor Ingredients<\/h3>\n\n          <p>\n            Its sulfur-containing chemistry makes L-cysteine relevant to heated\n            reaction-flavor systems and savory flavor development.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-app\">\n          <span class=\"g-app-num\">03<\/span>\n\n          <h3>Dietary Supplement Formulas<\/h3>\n\n          <p>\n            It can be incorporated into amino acid formulas and other nutrition products,\n            including powder, capsule and tablet formats where the selected material\n            fits the formulation specification.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-app\">\n          <span class=\"g-app-num\">04<\/span>\n\n          <h3>Pharmaceutical Uses<\/h3>\n\n          <p>\n            Cysteine hydrochloride is also represented in pharmaceutical standards and\n            products, including monohydrate material used in parenteral nutrition\n            products.\n          <\/p>\n        <\/article>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section g-section-soft\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Product Selection<\/p>\n\n        <h2>What to Specify When Sourcing L-Cysteine Hydrochloride<\/h2>\n\n        <p>\n          A clear product specification helps align the chemical form with the intended\n          application and quality requirements.\n        <\/p>\n      <\/div>\n\n\n      <div class=\"g-two-col\">\n\n        <article class=\"g-info-card\">\n          <h3>Form &amp; Standard<\/h3>\n\n          <ul class=\"g-list\">\n            <li>Specify anhydrous or monohydrate form.<\/li>\n            <li>State the required CAS number.<\/li>\n            <li>Define the applicable quality or compendial standard.<\/li>\n            <li>Confirm the assay basis used for the finished specification.<\/li>\n          <\/ul>\n        <\/article>\n\n\n        <article class=\"g-info-card\">\n          <h3>Quality Documentation<\/h3>\n\n          <ul class=\"g-list\">\n            <li>Review the applicable product specification.<\/li>\n            <li>Check batch-level analytical results against the agreed requirements.<\/li>\n            <li>Confirm the documents needed for quality review and receiving.<\/li>\n            <li>Align quantity, packaging and destination before final quotation.<\/li>\n          <\/ul>\n        <\/article>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Ordering Process<\/p>\n\n        <h2>From Specification to Bulk Order<\/h2>\n\n        <p>\n          The purchasing workflow starts with the product form and specification,\n          then moves through documentation and commercial details.\n        <\/p>\n      <\/div>\n\n\n      <div class=\"g-process\">\n\n        <article class=\"g-step\">\n          <span class=\"g-step-num\">1<\/span>\n\n          <h3>Define the Product<\/h3>\n\n          <p>\n            Select anhydrous or monohydrate and identify the required specification.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-step\">\n          <span class=\"g-step-num\">2<\/span>\n\n          <h3>Review Quality<\/h3>\n\n          <p>\n            Compare the applicable specification and batch documentation with your\n            internal quality requirements.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-step\">\n          <span class=\"g-step-num\">3<\/span>\n\n          <h3>Confirm Quantity<\/h3>\n\n          <p>\n            Provide the required order quantity, packaging preference and destination.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-step\">\n          <span class=\"g-step-num\">4<\/span>\n\n          <h3>Request a Quote<\/h3>\n\n          <p>\n            Send the product details so the commercial quotation can be prepared around\n            your specification and shipment requirements.\n          <\/p>\n        <\/article>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-section g-section-soft\">\n    <div class=\"g-wrap\">\n\n      <div class=\"g-section-head\">\n        <p class=\"g-kicker\">Documentation<\/p>\n\n        <h2>Quality Documents for Product Evaluation<\/h2>\n\n        <p>\n          Product documentation supports technical review before an order is finalized.\n        <\/p>\n      <\/div>\n\n\n      <div class=\"g-doc-grid\">\n\n        <article class=\"g-doc\">\n          <h3>Certificate of Analysis<\/h3>\n\n          <p>\n            Batch-specific analytical results provide the measured quality profile for\n            the material tested.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-doc\">\n          <h3>Product Specification<\/h3>\n\n          <p>\n            The specification defines the quality parameters used to evaluate the\n            selected product.\n          <\/p>\n        <\/article>\n\n\n        <article class=\"g-doc\">\n          <h3>Safety Data<\/h3>\n\n          <p>\n            Safety documentation can be reviewed alongside the product specification\n            during technical and purchasing evaluation.\n          <\/p>\n        <\/article>\n\n      <\/div>\n\n    <\/div>\n  <\/section>\n\n\n  <section class=\"g-category-section\" aria-label=\"Amino acid ingredient category\">\n\n    <div class=\"g-wrap\">\n\n      <div class=\"g-category-nav\">\n\n        <span class=\"g-category-label\">\n          Amino Acid Ingredients\n        <\/span>\n\n        <span class=\"g-category-divider\" aria-hidden=\"true\"><\/span>\n\n        <a\n          href=\"\/bulk-amino-acids-raw-material-supplier\/\"\n          class=\"g-category-link\"\n        >\n          Explore the full ingredient range\n          <span aria-hidden=\"true\">\u2192<\/span>\n        <\/a>\n\n      <\/div>\n\n    <\/div>\n\n  <\/section>\n\n\n  <section class=\"g-inquiry-section\" id=\"l-cysteine-inquiry\">\n\n    <div class=\"g-wrap g-inquiry-grid\">\n\n      <div class=\"g-inquiry-copy\">\n\n        <div class=\"g-inquiry-pill\">\n          L-Cysteine Hydrochloride Ingredient Inquiry\n        <\/div>\n\n        <h2>\n          Request L-Cysteine Hydrochloride Pricing &amp; Product Information\n        <\/h2>\n\n        <p>\n          Tell us the product form, required quantity and application for your L-Cysteine\n          Hydrochloride requirement.\n        <\/p>\n\n        <div class=\"g-inquiry-points\">\n\n          <span class=\"g-inquiry-point\">\n            Anhydrous\n          <\/span>\n\n          <span class=\"g-inquiry-point\">\n            Monohydrate\n          <\/span>\n\n          <span class=\"g-inquiry-point\">\n            Product Specification\n          <\/span>\n\n          <span class=\"g-inquiry-point\">\n            Bulk Quantity\n          <\/span>\n\n        <\/div>\n\n      <\/div>\n\n\n      <div class=\"g-form-panel\">\n\n        <h3>\n          Send Your Inquiry\n        <\/h3>\n\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\" 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