Description

L-Arginine is a semi-essential, cationic amino acid that serves as a fundamental building block for proteins and a key intermediate in critical metabolic pathways. Its commercial importance stems from its versatile role as a nutritional supplement, pharmaceutical intermediate, and biochemical reagent. This high-purity ingredient is essential for manufacturers in the nutraceutical, pharmaceutical, food and beverage, and cosmetic industries seeking reliable, specification-grade raw materials.

Application

• Nutraceutical & Dietary Supplements: A primary ingredient in sports nutrition, pre-workout formulas, and general wellness supplements for its role in nitric oxide production and protein synthesis.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and as a component in parenteral nutrition solutions and wound-healing formulations.
• Food & Beverage Fortification: Incorporated into functional foods, medical nutrition products, and beverage systems as a nutritional enhancer and flavor modifier.
• Cosmetic & Personal Care: Utilized in skin care formulations for its moisturizing properties and purported role in improving skin barrier function and texture.
• Biochemical Research & Cell Culture: Serves as a critical component in cell culture media, buffer systems, and as a substrate for enzymatic studies in life science research.
• Animal Nutrition: Added to feed for livestock and poultry to support growth, immune function, and reproductive health.

Basic Information

Product Name	L-Arginine
CAS No.	74-97-3
Molecular Formula	C6H14N4O2
Molecular Weight	174.20 g/mol
Synonyms	(S)-2-Amino-5-guanidinopentanoic acid; L-2-Amino-5-guanidinovaleric acid; Arg; R; (S)-Arginine; Levarginine; Arginine (USP); L-Arginine base; L(+)-Arginine
EINECS	200-811-1

Quality Control

Our L-Arginine is manufactured under a strict quality management system. Each batch is tested to ensure it meets stringent specifications for identity, purity, and safety, aligning with relevant standards such as USP, FCC, and Ph. Eur. where applicable. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). The product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.5% - 101.0% (on dried basis)
Specific Rotation	+26.9° to +27.9°
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Chloride (Cl)	≤ 0.02%
Sulfate (SO4)	≤ 0.02%
Related Substances (HPLC)	Total impurities ≤ 1.0%

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