L-Isoleucine CAS 73-32-5 | 99% Purity USP Food Pharma Grade Bulk Factory Export

Product Overview

Many overseas food manufacturers, pharmaceutical factories and nutrition producers often face common procurement problems: unstable batch color, fluctuating purity leading to formula failure, incomplete export documents causing customs clearance delays, and unbalanced amino acid ratios resulting in unqualified final products.

As a professional Chinese amino acid manufacturer, we supply export-grade L-Isoleucine (CAS 73-32-5) with stable HPLC-tested purity, consistent batch quality, and complete export certification documents. Our products fully meet international industrial standards for food processing, pharmaceutical formulation and biochemical research, serving long-term B2B buyers worldwide.

Product Specifications

Product Name: L-Isoleucine
CAS Number: 73-32-5
EINECS Number: 200-798-2
Molecular Formula: C₆H₁₃NO₂
Molecular Weight: 131.17
Appearance: White to off-white fine crystalline powder
Properties: Odorless, slightly bitter taste, good fluidity, non-caking, moisture resistant
Available Grades: Food Grade, Pharmaceutical Grade, USP Reagent Grade
Purity: ≥99%

L-Isoleucine is an essential branched-chain amino acid (BCAA) with stable physical and chemical properties. It features excellent solubility and strong formula compatibility with other amino acids, vitamins and inorganic salts, suitable for automated food production and sterile pharmaceutical processing.

Core Advantages vs Ordinary Suppliers

1. Stable Batch Consistency Without Quality Fluctuation

Produced via closed biological fermentation and recrystallization purification technology. Every batch is strictly tested by HPLC to control purity, moisture, transmittance and color value. No yellow powder, no impurities, no unstable data changes — perfectly suitable for long-term fixed formula mass production.

2. International Standard Compliance & Full Customs Documents

Our L-Isoleucine conforms to USP and FCC international standards. We provide complete export documents including COA, MSDS, test reports and certificate of origin, supporting smooth customs clearance for Europe, America, Southeast Asia, the Middle East and other global markets.

3. Full BCAA One-Stop Supply

We produce all three branched-chain amino acids: L-Isoleucine, L-Leucine and L-Valine. Buyers can complete one-stop procurement to reduce supplier costs, communication risks and logistics expenses.

4. Professional Technical Support for Formula Safety

Excessive addition of isoleucine may cause amino acid antagonism with leucine and lead to negative nitrogen balance. We provide free professional proportion guidance to help customers avoid formula errors and improve finished product qualification rates.

Global Industrial Applications

Food Nutrition Fortification

Cereals, wheat, potatoes and peanuts are naturally deficient in isoleucine. As a typical limiting amino acid, L-Isoleucine is widely used in functional foods, sports nutrition supplements, meal replacement powders and baked foods to balance amino acid nutrition and enhance product market competitiveness.

Pharmaceutical & Medical Formulation

Pharma-grade L-Isoleucine is a core raw material for compound amino acid injections and medical nutritional preparations. It is widely applied in postoperative recovery, physical weakness conditioning and clinical nutritional support, meeting high-purity pharmaceutical production requirements.

Biochemical Research & Cell Culture

High-purity reagent-grade L-Isoleucine is supplied to global laboratories, biological research institutions and universities for strain cultivation, cell culture and metabolic mechanism research, serving standardized biological experiments and pharmaceutical R&D.

Industrial Usage Guidelines

In industrial production, the proportion of L-Isoleucine must be strictly controlled. Improper dosage will cause nutritional antagonism and metabolic imbalance, resulting in unqualified products. We offer standard usage references and technical after-sales support for long-term cooperative clients.

Factory Export Strength

Stable Production Capacity & Sufficient Stock

Large standardized production lines ensure continuous supply. We support 25kg minimum order, full container bulk export and annual long-term contracts, avoiding seasonal out-of-stock risks for global buyers.

Neutral Export Packaging

Standard 25kg fiber drum with double-layer PE moisture-proof inner bag. Neutral non-Chinese packaging, customized private labeling and special packaging services are available.

Free Sample Testing Service

We support global customers to test samples first before bulk orders, helping verify purity, color and fluidity to reduce procurement risks.

One-Stop Export Service

Our professional foreign trade team provides quotation, document preparation, customs declaration, shipping arrangement and after-sales technical support. Stable sea freight, air freight and international express delivery ensure reliable global delivery.

Inquiry & Cooperation

If you need the latest FOB export price, free samples, full container discount, BCAA package purchasing solution or formula technical support, please contact us anytime.

We provide 24-hour fast reply and one-on-one professional service, sincerely establishing stable long-term cooperation with global food, pharmaceutical and biotech enterprises.