Poly-L-arginine hydrochloride

mol wt 5,000-15,000

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



mol wt



cell analysis: suitable
detection: suitable


white to off-white

storage temp.


SMILES string




InChI key


Looking for similar products? Visit Product Comparison Guide

Related Categories


10, 50, 100 mg in poly bottle


Contains 3% or less ornithine residue.

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

Analysis of transient and reversible effects of poly-L-arginine on the in vivo nasal absorption of FITC-dextran in rats.
Ohtake K, Natsume H, Ueda H, et al.
J. Controlled Release, 82, 263-275 (2002)
Poly-L-arginine enhances paracellular permeability via serine/threonine phosphorylation of ZO-1 and tyrosine dephosphorylation of occludin in rabbit nasal epithelium.
Ohtake K, Maeno T, Ueda H, et al.
Pharmaceut. Res., 20, 1838-1845 (2003)
Poly-L-arginine predominantly increases the paracellular permeability of hydrophilic macromolecules across rabbit nasal epithelium in vitro.
Ohtake K, Maeno T, Ueda H, et al.
Pharmaceut. Res., 20, 153-160 (2003)
M Miyamoto et al.
International journal of pharmaceutics, 226(1-2), 127-138 (2001-09-05)
The effect of poly-L-arginine (poly-L-Arg) on the in vivo nasal absorption of FITC-dextrans with a mean molecular weight ranging from 4.3 to 167 kDa and recombinant human granulocyte colony-stimulating factor (rhG-CSF) in rats were studied. When FITC-dextrans were co-administered intranasally...
M Miyamoto et al.
European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 52(1), 21-30 (2001-07-05)
The effects of the concentration and molecular weight of poly-L-arginine (poly-L-Arg) on the in vivo nasal absorption of fluorescein isothiocyanate-labeled dextran (MW, 4 kDa, FD-4) in rats were studied. When poly-L-Arg with a range of different molecular weights (MW, 8.9...
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.
Read More

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.