L-ARGININE

Product Overview

Conditionally Essential Amino Acid | Nitric-Oxide Precursor | USP43 | Sports & Circulatory Nutrition | Food Grade

L-Arginine (CAS 74-79-3) is a food-grade conditionally essential amino acid supplied as white crystalline powder at 98.5–101.5% assay, meeting USP43. It is produced by fermentation or hydrolysis and is a functionally important ingredient across sports and wellness nutrition.

Its commercial appeal comes from one central role: L-arginine is the direct biochemical precursor to nitric oxide (NO), a signalling molecule that relaxes and widens blood vessels. This vasodilation increases blood flow — which in sports nutrition translates to the muscle "pump," improved nutrient delivery, and endurance support, and in wellness products underpins circulatory and cardiovascular positioning. It is also involved in protein synthesis, creatine formation, and growth-hormone pathways, giving it broad relevance across performance and general-wellness formulations.

Key Properties

• Product Name: L-Arginine
• CAS Number: 74-79-3
• Category: Conditionally essential amino acid (nitric-oxide precursor)
• Standard: USP43
• Assay: 98.5–101.5%
• Appearance: White crystalline powder / colourless crystals
• Specific Rotation [α]D25: +26.3° to +27.7°
• Source: Fermentation / hydrolysis

How Food & Beverage Manufacturers Use This Ingredient

L-Arginine is used by manufacturers as a nitric-oxide-precursor amino acid. Typical applications include:

• Pre-Workout & "Pump" Product Manufacturing: A headline active in pre-workout powders and capsules, where its nitric-oxide pathway drives vasodilation, muscle pump, and blood flow during training.
• Sports Nutrition & Endurance Manufacturing: Formulated into performance and endurance products for improved circulation and nutrient delivery to working muscle.
• Circulatory & Cardiovascular Wellness Manufacturing: Used in circulation-support and cardiovascular-wellness supplements built around nitric-oxide production.
• Amino Acid & EAA Blend Manufacturing: Included in comprehensive amino-acid complexes for a complete profile.
• Men's Health Supplement Manufacturing: A common active in men's health formulations tied to blood-flow support.

Key Features

• Nitric-Oxide Precursor: Direct precursor to NO — the basis of the "pump" and circulatory-support claims
• 98.5–101.5% Purity, USP43: Pharmacopoeial-grade quality for regulated supplement manufacturing
• Water-Soluble Crystalline Powder: Dissolves cleanly for beverage powders, capsules, and tablets
• Multi-Pathway Relevance: Involved in protein synthesis, creatine formation, and growth-hormone pathways
• Low Heavy Metals: Lead ≤1 ppm, mercury ≤0.1 ppm

Technical Specifications

• Assay: 98.5–101.5%
• Specific Rotation [α]D25: +26.3° to +27.7°
• Loss on Drying: ≤0.5%
• Residue on Ignition: ≤0.3%
• Chloride: ≤0.05%
• Sulfate: ≤0.03%
• Iron: ≤30 ppm
• Lead: ≤1 ppm
• Arsenic: ≤0.5 ppm
• Mercury: ≤0.1 ppm
• Standard: USP43