Description

L-Arginine Hydrochloride is the hydrochloride salt form of the essential amino acid L-Arginine, a critical building block for proteins and a key intermediate in the urea cycle. This high-purity compound is valued for its enhanced stability and solubility compared to the free base, making it a preferred ingredient in advanced formulations. It serves as a vital raw material for the pharmaceutical, nutraceutical, and research sectors, where consistent quality and reliable supply are paramount.

Application

• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and parenteral nutrition solutions.
• Dietary Supplements & Sports Nutrition: A key component in nitric oxide boosters, pre-workout formulas, and general wellness supplements.
• Cell Culture Media: An essential nutrient in mammalian and microbial cell culture systems for biopharmaceutical production and research.
• Biochemical Research: Employed as a substrate or standard in enzymatic studies, metabolic pathway analysis, and protein chemistry.
• Cosmetic & Personal Care: Incorporated into skincare formulations for its purported moisturizing and conditioning properties.
• Animal Feed Additives: Used to enhance the nutritional profile of feed for livestock and aquaculture.

Basic Information

Product Name	L-Arginine Hydrochloride
CAS No.	1119-34-2
Molecular Formula	C6H14N4O2 • HCl
Molecular Weight	210.66 g/mol
Synonyms	L-Arginine HCl; (S)-2-Amino-5-guanidinopentanoic acid hydrochloride; Arg-HCl; Arginine monohydrochloride; (S)-(+)-Arginine hydrochloride; 2-Amino-5-guanidinovaleric acid hydrochloride; L(+)-Arginine hydrochloride; L-α-Amino-δ-guanidinovaleric acid hydrochloride
EINECS	214-275-3

Quality Control

Our L-Arginine Hydrochloride is manufactured under strict quality management systems. Each batch is tested to ensure it meets stringent specifications for identity, purity, and potency, aligning with standards such as USP, EP, and FCC 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, and well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in its original packaging until use to prevent degradation from atmospheric humidity.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.5% - 101.0%
Specific Rotation	+21.0° to +23.5°
pH (5% Solution)	5.0 - 6.5
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
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.