Amines & Amides Available — Bulk Only

L-Arginine Hydrochloride (L-Arginine HCl)

CAS 1119-34-2 · Formula C6H15ClN4O2 · MW 210.66 g/mol

The water-soluble hydrochloride salt of L-arginine for supplement, food, and pharmaceutical-grade applications. It is used as a nutritional supplement and food ingredient and as a raw material in pharmaceutical and medicine manufacturing.

Part of Amines & Amides
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HS Code
2922.49
At a Glance
Material Family
Amines & Amides
Record Type
Pure compound
Primary Role
Conditioning · Moisture Control
Functional Roles
ARGININE HCL
SKIN CONDITIONING
Applications & Use Cases
  • Nutritional supplement: Soluble amino-acid ingredient for supplements and beverages.
  • Pharmaceutical raw material: Used in pharmaceutical and medicine manufacturing.
  • Cosmetic ingredient: Skin-conditioning agent in personal-care formulations.
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2922 . 49
Chapter 29
Organic chemicals
Heading 29.22
Internationally harmonized (WCO HS)
Subheading 2922.49
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
1119-34-2
Molecular Formula
C6H15ClN4O2
Molecular Weight
210.66 g/mol
IUPAC Name
(2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid;hydrochloride
INCI Name
ARGININE HCL
PubChem CID
InChI Key
KWTQSFXGGICVPE-WCCKRBBISA-N
Synonyms & Trade Names
Arginine Hydrochloride L-ARGININE HCL R-Gene R-gene 10 L-Arginine, monohydrochloride Hydrochloride, arginine L-Arginine hydrochloride L-Arginine monohydrochloride Arginine HCl H-Arg-OH.HCl Arginine monohydrochloride (S)-2-Amino-5-guanidinopentanoic acid hydrochloride
Full Description

L-Arginine Hydrochloride (CAS 1119-34-2) is the monohydrochloride salt of L-arginine (C6H14N4O2.HCl). It is used as a nutritional supplement and food ingredient and as a raw material in pharmaceutical and medicine manufacturing. In cosmetics it functions as a skin-conditioning ingredient.

Frequently Asked Questions

What is L-Arginine Monohydrochloride used for?

L-Arginine Hydrochloride (CAS 1119-34-2) is the monohydrochloride salt of L-arginine (C6H14N4O2.HCl). It is used as a soluble nutritional-supplement and food ingredient and as a raw material in pharmaceutical and medicine manufacturing; in cosmetics it functions as a skin-conditioning ingredient. RawSource supplies USP, Kosher-certified material in bulk.

What is the difference between L-arginine HCl and L-arginine base?

The HCl form (CAS 1119-34-2) is the hydrochloride salt and is more readily water-soluble, while the base (CAS 74-79-3) is free L-arginine. The salt also carries a different mass-per-arginine and solution pH, which guides formulators choosing between them. We stock both and can quote either against your spec.

Is RawSource L-Arginine HCl USP and Kosher certified?

This material is offered to USP specification and with Kosher certification. Each lot ships with a Certificate of Analysis documenting conformance and an SDS; the Kosher certificate is available on request. Contact us to confirm current documentation for your application.

How is L-Arginine HCl sold in bulk?

It is supplied as a crystalline powder in industrial packaging (bags, drums) sized for supplement, beverage, and pharmaceutical-manufacturing use. Contact us for bulk pack sizes, minimum order quantity, lead time, and a current quote. CoA and SDS are provided with every shipment.

What is the CAS number and HS code for L-Arginine Monohydrochloride?

It is CAS 1119-34-2 with molecular formula C6H15ClN4O2 (C6H14N4O2.HCl). As an amino-acid salt it is classified under HS subheading 2922.49. Full identity and specification data accompany each order on the CoA.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.