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Colistin A

Colistin A

Catalog Number: orb1987100

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100 mg$ 0.00
500 mg$ 0.00
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Catalog Numberorb1987100
CategorySmall Molecules
DescriptionColistin A is an antibiotic generated by certain strains of the bacteria Paenibacillus polymyxa. Colistin is a mixture of the cyclic polypeptides colistin A and B and belongs to the class of polypeptide antibiotics known as polymyxins. Colistin is effective against most Gram-negative bacilli.
MW1169.46
CAS Number7722-44-3
FormulaC53H100N16O13
SMILESN(C([C@@H](NC([C@@H](NC([C@@H](NC(CCCC[C@H](CC)C)=O)CCN)=O)[C@@H](C)O)=O)CCN)=O)[C@@H]1C(=O)N[C@@H](CCN)C(=O)N[C@H](CC(C)C)C(=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)NCC1)[H]
Storage-20°C
NoteFor research use only
Expiration Date12 months from date of receipt.
  • Colistin Methanesulfonate (sodium salt) [orb1219454]

    >98% (HPLC)

    8068-28-8

    1749.8

    C58H105N16Na5O28S5

    50 mg, 1 g, 500 mg, 200 mg, 100 mg
  • Colistin sulfate [orb1226641]

    >98%(HPLC)

    1264-72-8

    1253.5

    C52H100N16O17S

    1 g, 500 mg, 100 mg
  • Histatin 8 TFA [orb1980112]

    1562.69

    C70H99N25O17.XCF3COOH

    25 mg, 10 mg, 5 mg, 1 mg
  • Polymyxin E2 sulfate [orb1979961]

    1338055-88-1

    1155.40

    C52H98N16O13.XH2SO4

    1 mg, 500 μg
  • Polymyxin E1 sulfate [orb1979963]

    207990-63-4

    1169.50

    C53H100N16O13.XH2SO4

    1 mg, 500 μg

For example, if the dosage of your experiment is 10mg/kg, the weight of each animal is 50g, and the volume of the dosing is 100μL, then the working solution concentration of your experiment is 5mg/mL. If the formula you used is 5% DMSO+ 30% PEG300+ 5% Tween 80 + 60% Saline/PBS/ddH2O, the preparation method is as follows:

Mother liquor preparation method: 5mg of drug dissolved in 100μL DMSO (mother liquor concentration is 50mg/mL). Preparation method of in vivo formulation: For 1mL of working solution preparation, take 50μL of DMSO mother liquor, add 300 μL of PEG300 to mix well and clarify, then add 50μL of Tween-80 to mix well and clarify, and finally add 600μL of Saline/PBS/ddH2O to mix well and clarify.

Note:
  1. For Reference Only. Please choose the appropriate dissolution protocol according to your experimental animal and administration method.
  2. We suggest that in cell experiments, the final concentration of DMSO is not more than 0.1%, in animal experiments, for healthy mice, the final concentration of DMSO is not more than 10%; For nude or frail mice, the final concentration of DMSO is not more than 2%.