Description

L-Isoleucine is an essential branched-chain amino acid (BCAA) critical for protein synthesis, metabolic regulation, and energy production in living organisms. Its high purity and consistent quality make it a vital component for applications demanding precise nutritional and biochemical profiles. This product is primarily utilized by manufacturers in the pharmaceutical, nutraceutical, and food & beverage industries, as well as in advanced research and cell culture media formulation.

Application

• Pharmaceutical Intermediates: As a key chiral building block in the synthesis of active pharmaceutical ingredients (APIs) and peptide drugs.
• Dietary Supplements & Sports Nutrition: A core ingredient in BCAA blends, protein powders, and performance-enhancing formulations to support muscle recovery and metabolic health.
• Infant Formula & Clinical Nutrition: An essential nutrient added to parenteral and enteral nutrition solutions, medical foods, and specialized infant formulas to meet specific dietary requirements.
• Cell Culture & Fermentation Media: Used as a defined nutrient in mammalian and microbial cell culture systems for biopharmaceutical production and biotechnology research.
• Food & Beverage Fortification: Incorporated into functional foods and beverages to enhance nutritional value and support health claims.
• Biochemical Research: Employed as a standard or reagent in enzymatic studies, metabolic pathway analysis, and proteomics research.

Basic Information

Product Name	L-Isoleucine
CAS No.	131598-62-4
Molecular Formula	C6H13NO2
Molecular Weight	131.17 g/mol
Synonyms	(2S,3S)-2-Amino-3-methylpentanoic acid; (S)-Isoleucine; ILE; Iso; (S)-2-Amino-3-methylvaleric acid; L-α-Amino-β-methylvaleric acid; L-(+)-Isoleucine; (2S,3S)-Isoleucine
EINECS	Contact for details

Quality Control

Our L-Isoleucine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure compliance with relevant pharmacopeial standards such as USP, EP, JP, and FCC for food-grade applications. A comprehensive Certificate of Analysis (COA), detailing purity, chiral purity, and impurity profiles, is provided with every shipment to guarantee traceability and product integrity.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect stability and handling properties.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Specific Rotation	+39.5° to +41.5°
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Chiral Purity (L-Isomer)	≥ 99.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.