Amines & Amides Available — Bulk Only

L-Arginine Pyroglutamate (Arginine PCA, Arginine Pidolate)

CAS 56265-06-6 · Formula C11H21N5O5 · MW 303.32 g/mol

An arginine pidolate salt prized as a naturally derived humectant for moisture-binding cosmetic systems. Industry references record its cosmetic function as a humectant, and it is incorporated into personal-care formulations as a moisture-binding ingredient.

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CAS Number
56265-06-6
Formula
C11H21N5O5
Molecular Weight
303.32 g/mol
Material Family
Amines & Amides
At a Glance
Material Family
Amines & Amides
Record Type
Pure compound
Primary Role
Conditioning · Moisture Control
Functional Roles
ARGININE PCA
HUMECTANTSKIN CONDITIONING
Industries Served
Applications & Use Cases
  • Cosmetic humectant: Moisture-binding ingredient in skin- and hair-care formulations.
  • Amino-acid salt: Combined L-arginine / L-pyroglutamic acid (PCA) source.
  • Personal-care ingredient: Formulated into leave-on cosmetic products.
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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Chemical Identity
CAS Number
56265-06-6
Molecular Formula
C11H21N5O5
Molecular Weight
303.32 g/mol
IUPAC Name
(2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid;(2S)-5-oxopyrrolidine-2-carboxylic acid
INCI Name
ARGININE PCA
PubChem CID
InChI Key
UYCAGRPOUWSBIQ-WOYAITHZSA-N
Synonyms & Trade Names
Arginine PCA Arginine pidolate Adiuvant ARGIDONE 5-Oxo-L-proline, compound with L-arginine (1:1) ARGININE L-PYROGLUTAMATE L-ARGININE L-2 PYRROLIDONE-5-CARBOXYLATE ARGININE PCA [INCI] L-arginine L-2-pyrrolidone-5-carboxylate L-Arginine-L-pyroglutamate L-Arginine L-Pyroglutamate 5-Oxo-L-proline L-arginine salt
Full Description

L-Arginine Pyroglutamate (CAS 56265-06-6) is the salt of L-arginine with L-pyroglutamic acid (arginine PCA; C11H21N5O5). Industry references record its cosmetic function as a humectant, and it is incorporated into personal-care formulations as a moisture-binding ingredient.

Frequently Asked Questions

What does L-arginine pyroglutamate do in a formulation?

L-Arginine Pyroglutamate (CAS 56265-06-6) is the salt of L-arginine with L-pyroglutamic acid (arginine PCA; C11H21N5O5). Industry references record its cosmetic function as a humectant, so it is incorporated into skin- and hair-care formulations as a moisture-binding ingredient. RawSource supplies it as a bulk cosmetic/specialty raw material.

What is L-arginine pyroglutamate made of?

It is the 1:1 salt combining L-arginine with L-pyroglutamic acid (PCA), giving the molecular formula C11H21N5O5, CAS 56265-06-6. It therefore functions as a combined arginine/PCA source. Identity is confirmed on the CoA supplied with each lot.

Is L-arginine pyroglutamate the same as arginine PCA?

Yes. Arginine PCA is the common shorthand for L-arginine pyroglutamate, the arginine salt of pyroglutamic acid (CAS 56265-06-6). The two names refer to the same compound used as a humectant in personal-care formulations.

How is L-arginine pyroglutamate supplied in bulk?

It is supplied as a raw-material powder in industrial packaging sized for cosmetic formulation use. Contact us for bulk pack sizes, minimum order quantity, available grade, lead time, and a current quote. SDS and CoA accompany every shipment.

What is the CAS number for L-arginine pyroglutamate?

It is CAS 56265-06-6 with molecular formula C11H21N5O5. An HS classification is best confirmed with your customs broker for the salt; full identity and specification data are provided on the CoA with each order.

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.