L-Arginine - Pharmaceutical-Grade Amino Acid Raw Material for OEM/ODM Supplements
Pharmaceutical-grade L-Arginine raw material for dietary supplement manufacturers. A semi-essential amino acid supplied as high-purity crystalline powder, suitable for capsule, tablet, powder, and functional beverage formulations in the cardiovascular support, sports nutrition, and pre-workout categories.
Key Specifications:
- Purity: 98.5%+ L-Arginine (USP / EP grade)
- Form: White crystalline powder
- Compendial: Meets USP / EP / BP standards
- Pharmaceutical and food grades available
- Third-party tested
- Flexible MOQ from 25kg
- Compatible with capsule, tablet, powder, and liquid applications
Active Compound: L-Arginine, a semi-essential amino acid that serves as the metabolic precursor to nitric oxide (NO).
Ideal For: OEM/ODM supplement brands, contract manufacturers, cardiovascular and sports nutrition formulators, pre-workout and pump product producers, private label brands.
- Product Details
- Technical Specification
- After-sale service
L-Arginine - Pharmaceutical-Grade Amino Acid Raw Material
L-Arginine is a semi-essential amino acid that the body produces in limited amounts and also obtains from protein-rich foods. Its most studied biological role is as the metabolic precursor to nitric oxide (NO), a signaling molecule involved in blood vessel function and circulation. Research has examined L-Arginine for its role in cardiovascular function, blood vessel dilation, and exercise-related performance. This raw material is supplied as high-purity L-Arginine in free-form crystalline powder, meeting compendial standards (USP / EP / BP). It is intended for manufacturers producing cardiovascular support, sports nutrition, pre-workout, and amino acid formulations.
Raw Material Features:
Active: L-Arginine (free-form, the biologically active isomer)
Form: White crystalline powder
Purity: 98.5%+ (compendial grade)
Appearance: White to off-white crystalline powder
Solubility: Highly water-soluble; freely soluble in water
Taste: Slightly bitter, alkaline
Compendial Standards: Meets USP / EP / BP
Related Forms Available: L-Arginine HCl, L-Arginine Alpha-Ketoglutarate (AAKG)
Primary Applications:
Cardiovascular and circulation support supplement formulations
Pre-workout and nitric oxide booster products
Sports nutrition and recovery formulations
Men's health and vitality products
Amino acid blends and multi-amino formulations
Capsule, tablet, powder, and functional beverage applications
Common formulation dose range: 500 mg to 3,000 mg per serving
Manufacturing Notes:
Consistent purity batch-to-batch
Highly water-soluble — suitable for both dry capsule fill and beverage powder applications
Bitter, alkaline taste profile — typically masked with citric acid, natural flavorings, or sweeteners in beverage formats
Compatible with complementary ingredients such as L-citrulline, beta-alanine, creatine, and B vitamins
Suitable for vegetarian and vegan-positioned products
Three related forms available: L-Arginine free-form, L-Arginine HCl, and L-Arginine AAKG — each with different solubility, pH, and cost profiles
| Parameter | Specification |
| Product Name | L-Arginine (Free-Form) |
| Chemical Name | L-2-Amino-5-guanidinopentanoic acid |
| CAS Number | 74-79-3 |
| Molecular Formula | C₆H₁₄N₄O₂ |
| Molecular Weight | 174.20 g/mol |
| Active | L-Arginine (L-isomer) |
| Purity | 98.5%+ |
| Form | Crystalline powder |
| Appearance | White to off-white crystalline powder |
| Solubility | Freely soluble in water |
| Specific Rotation [α]D | +26° to +27.9° (typical) |
| pH (1% aqueous solution | ~10.5-12.0 (alkaline) |
| Loss on Drying | <0.5% |
| Sulfated Ash | <0.4% |
| Heavy Metals | <10 ppm (Pb, Cd, As, Hg compliant) |
| Microbial Load | <1000 CFU/g, E. coli & Salmonella negative |
| Compendial Standards | USP / EP / BP |
| Related Forms Available | L-Arginine HCl, L-Arginine AAKG |
| Shelf Life | 36 months (proper storage) |
| Storage | Cool, dry place, away from light and moisture |
| Packaging | 25kg / 50kg fiber drums or aluminum-lined bags |
| Testing Method | HPLC for purity; titration for assay |
| Certifications | GMP, ISO 22000 |
| Origin | Guangzhou, China |
Minimum Order & Pricing:
MOQ: 25kg per order
Volume discounts: 100kg+, 500kg+
Standard packaging: 25kg / 50kg drums or aluminum-lined bags
Lead time: 15-30 days
Quality Assurance:
Third-party lab testing (HPLC purity verification)
Heavy metal & microbial screening
Certificate of Analysis (COA) provided per batch
USP / EP / BP compendial compliance documentation
Batch traceability and documentation
Technical Support:
Three forms available: L-Arginine free-form, L-Arginine HCl, L-Arginine AAKG
Pharmaceutical and food grades available
Formulation compatibility guidance (e.g. L-citrulline pairing, taste-masking for beverages)
Regulatory documentation support
Sample availability for qualification (100-200g)
