L-Leucine USP EP BP Ph Eur FCC Food Grade Supplier Exporter/title> <link rel="shortcut icon" href="../favicon.png" type="image/x-icon"/> <style></style> </head><body><blockquote> <table width="100%"><tr> <td><div align="center"><img src="index_clip_image001_0000.jpg" width="300" height="69" alt="American Molecules - Ammol.org USA"></div></td></tr><tr> <td><div align="center"><font size="5"><a href="/"><strong>Home</strong></a><strong> | <a href="contactammol.html">Contact</a></strong></font></div></td></tr><tr> <td><h1 align="center">L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid USP EP BP Ph Eur FCC Food Grade Supplier Exporter Manufacturers' Representative</h1></td></tr> <tr> <td><div align="center">Email: <a href="mailto:info@ammol.org">info@ammol.org</a></div></td></tr><tr> <td><p align="center"><b>Call Toll Free <a href="tel:+1-855-552-6665">+1-855-552-6665</a></b><br> <font color="#000066"><strong>Toll Free: 1-855-55-AMMOL</strong></font></p></td></tr><tr> <td><div align="center"><script src="https://cdn.addsearch.com/v5/addsearch-ui.min.js?key=205d76cf092c72cb418298b8e62cff08"></script> </div></td></tr></table> <table width="100%"><tr> <td width="100%"><p align="center"><strong><u>Quick Links to Products</u></strong>:</p> <p align="justify" style="line-height: 150%"><a href="glycinesuppliers.html">Glycine</a> | <a href="l-isoleucinesuppliers.html">L-Isoleucine</a> | <a href="kaolin-suppliers-light-heavy-natural.html">Kaolin Light Heavy & Natural</a> | <a href="ketoconazolesuppliers.html">Ketoconazole</a> | <a href="l-leucinesuppliers.html">L-Leucine Suppliers</a> | <a href="lactitolsuppliers.html">Lactitol</a> | <a href="lacticacidsuppliers.html">Lactic Acid</a> | <a href="lactosesuppliers.html">Lactose</a> | <a href="levofloxacinsuppliers.html">Levofloxacin</a> | <a href="lisinoprilsuppliers.html">Lisinopril</a> | <a href="allproducts.html">and more</a> --</p></td></tr></table> <p><strong>L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid<br> CAS Number: 61-90-5</strong><br> Molecular Formula: C6H13NO2<br> Molecular Weight: 131.17</p> <p><img border="2" src="l-leucine.jpg" width="160" height="160" alt="L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid Suppliers"><br> L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid</p> <p>L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid is an essential amino acid, which can be used in nutritional supplements and generally used for bread, bread products. Used as a food additive, L-leucine has E number E641 and is classified as a flavor enhancer.</p> <p><strong><u>General Properties and Specifications of L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid</u></strong>:<br> Appearance: White crystalline powder.<br> Solubility of 10% solution 2N HCl: Clear colourless.<br> pH (1% aq. solution): 5.5 to 7.0<br> Assay: 99% minimum.<br> Loss on drying: 0.5% maximum.<br> Sulfated Ash: 0.1% maximum.<br> Chloride (CI): 0.02% maximum.<br> Sulfate (SO4): 0.01% maximum.<br> Iron (Fe): 0.001% maximum.<br> Heavy Metals (Pb): 0.001% maximum.<br> Ammonium (NH4): 0.02% maximum.<br> Homogeneity by TLC: Passes test.</p> <hr> <p><strong><u>Leucine USP Grade Specifications</u></strong>:<br> C6H13NO2 --- 131.17<br> l-Leucine CAS 61-90-5<br> UNII: GMW67QNF9C</p> <p><strong>DEFINITION</strong><br> Leucine contains NLT 98.5% and NMT 101.5% of l-leucine (C6H13NO2), calculated on the dried basis.</p> <p><strong>IDENTIFICATION</strong><br> <b>A</b>. Infrared Absorption.<br> <u>Residue on Ignition</u>: NMT 0.4%<br> <u>Chloride and Sulfate, Chloride</u>: NMT 0.05%<br> <u>Chloride and Sulfate, Sulfate</u>: NMT 0.03%<br> <u>Iron</u>: NMT 30 ppm<br> <u>Related Compounds</u>: To pass the test.<br> <u>Optical Rotation, Specific Rotation</u>:<br> Sample solution: 40 mg/mL in 6 N hydrochloric acid.<br> Acceptance criteria: +14.9° to +17.3°<br> <u>pH</u>: 5.5–7.0<br> <u>Loss on Drying</u>: Dry at 105c for 3 h.<br> Acceptance criteria: NMT 0.2%</p> <hr> <p><strong><u>L-Leucine FCC Food Grade Specifications</u></strong>:<br> L-2-Amino-4-methylvaleric Acid<br> C6H13NO2 Formula weight 131.17<br> INS: 641 CAS: 61-90-5</p> <p><strong>DESCRIPTION</strong><br> L-Leucine occurs as small, white, lustrous plates, or as a white, crystalline powder. One-gram dissolves in about 40 mL of water and in about 100 mL of glacial acetic acid. It is sparingly soluble in alcohol, and soluble in dilute hydrochloric acid and in solutions of alkali hydroxides and carbonates.<br> <u>Function</u>: Nutrient.</p> <p><strong>REQUIREMENTS</strong><br> <u>Identification</u>: The infrared absorption spectrum of the sample exhibits relative maxima at the same wavelengths as those of a typical spectrum as shown in the section on Infrared Spectra, using the same test conditions as specified therein.<br> <u>Assay</u>: Not less than 98.5% and not more than 101.5% of C6H13NO2, calculated on the dried basis.<br> <u>Lead</u>: Not more than 5 mg/kg.<br> <u>Loss on Drying</u>: Not more than 0.2%.<br> <u>Optical (Specific) Rotation</u>: [α]D 20°: Between +14.5° and +16.5°, calculated on the dried basis; or [α]D 25°: Between +14.8° and +16.8°, calculated on the dried basis.<br> <u>Residue on Ignition</u>: Not more than 0.1%</p> <hr> <p><strong><u>We also supply Leucine BP Ph Eur Grade</u></strong>.</p> <p><a href="l-leucine-safetydatasheet.html">Please visit SDS Safety Data Sheet of L-Leucine or L-2-Amino-4-methylvaleric Acid or (2S)-2-Amino-4-methylpentanoic Acid Suppliers</a>.</p> <p><strong>American Molecules</strong>, also known as <strong>ammol.org</strong> is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.</p> <p align="center"><img border="2" src="pallet.jpg" alt="Pallet" width="125" height="125"> <img border="2" src="drumpallet.jpg" width="125" height="125" alt="Drums"> <img border="2" src="bottle.jpeg" width="125" height="125" alt="Bottles"> <img border="2" src="pail.jpeg" width="125" height="125" alt="Pail"> <img border="2" src="container.jpg" width="125" height="125" alt="Container"></p> <p align="center">Suppliers and Manufacturers' Representative:<br> <img src="index_clip_image001_0000.jpg" width="300" height="69" alt="American Molecules - Ammol.org USA"><br> 9910 Bent Oak Dr<br> Houston, TX 77040, USA<br> Call Toll Free: 1-855-55-AMMOL 1-855-552-6665<br> Email: <a href="mailto:info@ammol.org">info@ammol.org</a></p> </blockquote> <p>11 February, 2026</p> </body></html>