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Pexiganan acetate (MSI 78) is a synthetic cationic peptide composed of 22 amino acids and demonstrates potent antibacterial activity. Pexiganan acetate is an analogue of magainin 2, which is a naturally occurring host defense peptide originally isolated from frog skin. The antibacterial action of Pexiganan acetate is thought to involve disruption of the integrity and permeability of the bacterial cell membrane or cell wall, leading to bacterial cell death.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $150 | - | In Stock | |
| 5 mg | $330 | - | In Stock | |
| 10 mg | $520 | - | In Stock | |
| 25 mg | $1,180 | - | In Stock | |
| 50 mg | $1,770 | - | In Stock | |
| 100 mg | $2,650 | - | In Stock |
| Description | Pexiganan acetate (MSI 78) is a synthetic cationic peptide composed of 22 amino acids and demonstrates potent antibacterial activity. Pexiganan acetate is an analogue of magainin 2, which is a naturally occurring host defense peptide originally isolated from frog skin. The antibacterial action of Pexiganan acetate is thought to involve disruption of the integrity and permeability of the bacterial cell membrane or cell wall, leading to bacterial cell death. |
| Synonyms | MSI78, MSI 78, Cytolex |
| Molecular Weight | 2477.22 (free base) |
| Formula | C122H210N32O22.xC2H4O2 |
| Cas No. | 172820-23-4 |
| Smiles | C(C)(O)=O.[C@H](CC1=CC=CC=C1)(C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H](CC2=CC=CC=C2)C(NCC(N[C@H](C(N[C@H](C(N[C@@H](CC3=CC=CC=C3)C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H](CCCCN)C(N)=O)=O)CCCCN)=O)CC(C)C)=O)[C@H](CC)C)=O)CCCCN)=O)[C@H](C)C)=O)=O)C)=O)CCCCN)=O)=O)=O)CCCCN)=O)CCCCN)=O)C)=O)CCCCN)=O)CCCCN)=O)CC(C)C)=O)NC([C@@H](NC(CNC([C@@H](NC(CN)=O)[C@H](CC)C)=O)=O)CCCCN)=O |
| Sequence | Gly-Ile-Gly-Lys-Phe-Leu-Lys-Lys-Ala-Lys-Lys-Phe-Gly-Lys-Ala-Phe-Val-Lys-Ile-Leu-Lys-Lys-NH2 |
| Sequence Short | GIGKFLKKAKKFGKAFVKILKK |
| Storage | keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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