P9386
Poly-L-histidine
mol wt 5,000-25,000
Synonym(s):
L-Histidine homopolymer
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About This Item
CAS Number:
MDL number:
UNSPSC Code:
12352209
PubChem Substance ID:
NACRES:
NA.26
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form
powder or solid
Quality Level
mol wt
5,000-25,000
color
white to light yellow
application(s)
cell analysis
storage temp.
−20°C
SMILES string
[N+H3][C@@H](Cc1[nH]cnc1)C(=O)[O-]
InChI
1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key
HNDVDQJCIGZPNO-YFKPBYRVSA-N
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General description
Poly-L-histidine is an amphoteric compound. The imidazole ring in its structure enables protonation−deprotonation.
Application
Poly-L-histidine has been used:
- as a polycation for the dispersion of multi-wall carbon nanotubes (MWCNTs)
- as a polyionic compound to investigate its ability to rupture extracellular enveloped virus membrane
- in screening its anti-prion activity in cell based and in vivo anti-prion assay
Biochem/physiol Actions
Poly-L-histidine (Phis) copolymers are biocompatible, pH responsive and are less toxic. It exhibits endolysosomal escape funcationality. The copolymer of Phis with poly(ethylene glycol)−poly(d,l-lactide) (PEG-PLA) is effective in delivering doxorubicin. pH sensitive poly(l-histidine) copolymer micelles have application in delivering anticancer drugs in acidic microenvironment.
Analysis Note
Molecular weight by MALLS.
Other Notes
For additional technical information on polyamino acids please visit the Polyamino acid FAQ resource.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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