Poly-L-arginine hydrochloride

mol wt >70,000

CAS Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.


powder or solid

mol wt



bioconjugation: suitable


white to off-white

storage temp.


SMILES string




InChI key


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Poly-L-arginine hydrochloride has been used:
  • as polyelectrolyte solution in the synthesis of biodegradable capsules
  • as layer constituent, in the preparation of layer by layer (LbL) assembly of multilayer biodegradable shells
  • in assay for the determination of binding activity of C-reactive protein for polycationic ligands


10, 50, 100 mg in poly bottle

Biochem/physiol Actions

Poly-L-arginine (PLA) possesses anti-bacterial activity. It has a greater capacity to enhance membrane permeability. PLA at lower concentration enhances cell proliferation and at higher concentration acts as antiproliferative agent.


Contains 3% or less ornithine residue by TLC.

Analysis Note

Molecular weight based on viscosity of precursor poly-L-ornithine.

Other Notes

For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Multilayered Magnetic Nanobeads for the Delivery of Peptides Molecules Triggered by Intracellular Proteases
Quarta A, et al.
ACS Applied Materials & Interfaces, 9(40), 35095-35104 (2017)
Interaction of Calcium-bound C-reactive Protein with Fibronectin Is Controlled by pH IN VIVO IMPLICATIONS
Suresh MV, et al.
Test, 279(50), 52552-52557 (2004)
NIR-light triggered delivery of macromolecules into the cytosol
Carregal-Romero S, et al.
Journal of Controlled Release : Official Journal of the Controlled Release Society, 159(1), 120-127 (2012)
Poly-L-arginine: Enhancing Cytotoxicity and Cellular Uptake of Doxorubicin and Necrotic Cell Death
Movafegh B, et al.
Anticancer Agents in Medicinal Chemistry, 18(10), 1448-1456 (2018)
Antibacterial activity of poly-l-arginine under different conditions
Sepahi M , et al.
Iranian Journal of Microbiology, 9(2), 103-103 (2017)
Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique and useful properties.
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