{"product_id":"l-leucine-ethyl-ester-hydrochloride-2p23-2p23","title":"L-Leucine ethyl ester hydrochloride, 100 g","description":"\u003cp\u003eL-Leucine ethyl ester hydrochloride is an amino-acid ester salt with CAS number 2743-40-0 and empirical formula C₈H₁₇NO₂HCl. It has a molar mass of 195,69 g\/mol. This protected leucine derivative from manufacturer Carl ROTH serves as a versatile intermediate in peptide chemistry, esterification studies, and the preparation of leucine-containing building blocks. The ethyl ester hydrochloride form improves handling and solubility relative to the free amino acid in many organic media, supporting coupling reactions, protecting-group strategies, and structure–activity explorations. Research groups working on peptide mimetics, prodrug concepts, or chiral amino-acid derivatives can use the defined molecular identity and pack size to plan multi-step sequences with reliable stoichiometry. The product fits standard cold-storage laboratory inventories for amino-acid chemistry and related organic synthesis applications.\u003c\/p\u003e\n\u003c!-- lx-pdp-inline --\u003e\n\u003cp\u003eThis article is part of \u003ca href=\"\/en-fr\/collections\/click-chemistry-bioconjugation-and-synthesis-reagents\"\u003eClick chemistry, bioconjugation \u0026amp; synthesis reagents\u003c\/a\u003e, in \u003ca href=\"\/en-fr\/collections\/biochemicals-and-reagents\"\u003eBiochemicals \u0026amp; reagents\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eColour: white to off-white\u003c\/li\u003e\n\u003cli\u003eForm: powder\u003c\/li\u003e\n\u003cli\u003e¹H-NMR Spectrum: corresponds to assigned structure\u003c\/li\u003e\n\u003cli\u003ePurity (NMR): ≥ 95 %\u003c\/li\u003e\n\u003cli\u003eCAS number: 2743-40-0\u003c\/li\u003e\n\u003cli\u003ePack sizes: 100 g, 250 g, 500 g\u003c\/li\u003e\n\u003cli\u003eEmpirical formula: C₈H₁₇NO₂HCl\u003c\/li\u003e\n\u003cli\u003eMolar mass: 195,69 g\/mol\u003c\/li\u003e\n\u003cli\u003eStorage temperature: +2 to +8 °C\u003c\/li\u003e\n\u003cli\u003eProduct type: Amino acid ester hydrochloride\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eTechnical Information Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SPEZ-2P23-EN.pdf?context=bWFzdGVyfHNwZWNpZmljYXRpb25zfDEwMjU2OHxhcHBsaWNhdGlvbi9wZGZ8YUdZNEwyZzVZeTg1TWpVME56TTBNakF3T0RZeUwxTlFSVnBmTWxBeU0xOUZUaTV3WkdZfDQ0MGRjZDNlZDBkY2IxMjMxZjlhMmM1ODc0NjA5NjQ0YTJiNzgyMzc1NjIwOGE3NWEzYzljNjY3NjVjOWJiODA\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"Technical sheet PDF\" aria-label=\"Technical sheet PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli class=\"lx-tis-li\"\u003eSafety Data Sheet: \u003ca class=\"sds-link\" href=\"https:\/\/api.carlroth.com\/medias\/SDB-2P23-DE-DE.pdf?context=bWFzdGVyfHNlY3VyaXR5RGF0YXNoZWV0c3w3ODY1MHxhcHBsaWNhdGlvbi9wZGZ8YUROa0wyZ3hOaTg1TVRrMk1qTTVNelUxT1RNMEwxTkVRbDh5VURJelgwUkZYMFJGTG5Ca1pnfDI1NWFjNGFjYmZjZDk0ZjdlNWEyMzc4NGJhY2I0OGI5YjEzYjhiNzFlZjJlOGFmMWEyZDIzOWRhZDZkZGJhNzg\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline;vertical-align:middle\" title=\"SDS PDF\" aria-label=\"SDS PDF\"\u003e\u003cimg class=\"sds-icon\" src=\"https:\/\/img.icons8.com\/color\/48\/pdf.png\" alt=\"PDF\" width=\"18\" height=\"18\" style=\"width:18px;height:18px;max-width:18px;margin:0;padding:0;display:inline;vertical-align:middle;border:0;\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Carl Roth","offers":[{"title":"100 g \/ 1 piece","offer_id":56145678336332,"sku":"2P23.3","price":306.4,"currency_code":"EUR","in_stock":true},{"title":"100 g \/ 6+ pieces","offer_id":56145678369100,"sku":"2P23.3","price":291.08,"currency_code":"EUR","in_stock":true},{"title":"100 g \/ 24+ pieces","offer_id":56145678401868,"sku":"2P23.3","price":275.76,"currency_code":"EUR","in_stock":true},{"title":"250 g \/ 1 piece","offer_id":56145678434636,"sku":"2P23.4","price":600.95,"currency_code":"EUR","in_stock":true},{"title":"250 g \/ 6+ pieces","offer_id":56145678467404,"sku":"2P23.4","price":570.9,"currency_code":"EUR","in_stock":true},{"title":"250 g \/ 24+ pieces","offer_id":56145678500172,"sku":"2P23.4","price":540.86,"currency_code":"EUR","in_stock":true},{"title":"500 g \/ 1 piece","offer_id":56145678532940,"sku":"2P23.5","price":912.7,"currency_code":"EUR","in_stock":true},{"title":"500 g \/ 6+ pieces","offer_id":56145678565708,"sku":"2P23.5","price":867.07,"currency_code":"EUR","in_stock":true},{"title":"500 g \/ 24+ pieces","offer_id":56145678598476,"sku":"2P23.5","price":821.43,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0955\/4827\/7068\/files\/1000Wx1000H-2P23-SF_ee197cd2-3d4d-47f5-b134-8ee0e88f1ff8.jpg?v=1766418761","url":"https:\/\/www.luminixhealth.com\/en-fr\/products\/l-leucine-ethyl-ester-hydrochloride-2p23-2p23","provider":"Luminix Health","version":"1.0","type":"link"}