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Chemical Structure| 2220175-42-6 Chemical Structure| 2220175-42-6

Structure of Polymyxin B nonapeptide TFA
CAS No.: 2220175-42-6

Chemical Structure| 2220175-42-6

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Polymyxin B nonapeptide TFA is a derivative of Polymyxin B with lower toxicity, though it has lost its bactericidal activity, it can still disrupt the outer membrane of Gram-negative bacteria, suitable for studying antibacterial mechanisms, particularly related to multidrug-resistant bacteria.

Synonyms: Polymyxin B nonapeptide TFA

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Product Details of Polymyxin B nonapeptide TFA

CAS No. :2220175-42-6
Formula : C45H75F3N14O13
M.W : 1077.16
SMILES Code : C(C(O)=O)(F)(F)F.C([C@@H]1C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCN)C(=O)N[C@@H](CCN)C(=O)N[C@@]([C@@H](C)O)(C(=O)NCC[C@H](NC([C@@H](NC([C@H]([C@@H](C)O)N)=O)CCN)=O)C(=O)N[C@@H](CCN)C(=O)N1)[H])C2=CC=CC=C2
Synonyms :
Polymyxin B nonapeptide TFA
MDL No. :N/A

Safety of Polymyxin B nonapeptide TFA

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Isoform Comparison

Biological Activity

In Vitro:

Cell Line
Concentration Treated Time Description References
K562 cells 3 mg/ml 18 hours To evaluate the cytotoxicity of PMBN against K562 cells, results showed that PMBN at 3 mg/ml induced minimal 51Cr release and cells remained healthy for at least 48 hours Antimicrob Agents Chemother. 1986 Aug;30(2):340-1
HEK293-hP2X7 cells 10 μg/ml 3 minutes PMBN was unable to potentiate ATP-induced Ca2+ increase, pore formation, and ATP-mediated plasma membrane permeabilization. Br J Pharmacol. 2007 Feb;150(4):445-54
Human macrophages 10 μg/ml 6 hours PMBN did not increase ATP- or BzATP-induced cell death. Br J Pharmacol. 2007 Feb;150(4):445-54

In Vivo:

Species
Animal Model
Administration Dosage Frequency Description References
ICR female mice Gram-negative bacterial infection model Intraperitoneal injection PMBN 50 mg/kg + novobiocin 25 mg/kg or erythromycin 10 mg/kg Multiple doses over 2 days or longer The combination of PMBN with novobiocin or erythromycin, when administered in multiple doses, synergistically protected mice from gram-negative bacterial infections Antimicrob Agents Chemother. 1994 Feb;38(2):374-7

Protocol

Bio Calculators
Preparing Stock Solutions 1mg 5mg 10mg

1 mM

5 mM

10 mM

0.93mL

0.19mL

0.09mL

4.64mL

0.93mL

0.46mL

9.28mL

1.86mL

0.93mL

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