1. Metabolic Enzyme/Protease Anti-infection
  2. Cytochrome P450 Bacterial Antibiotic
  3. Cecropin B

Cecropin B 

Cat. No.: HY-P0092 Purity: 98.07%
COA Handling Instructions

Cecropin B has high level of antimicrobial activity and is considered as a valuable peptide antibiotic.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Cecropin B Chemical Structure

Cecropin B Chemical Structure

CAS No. : 80451-05-4

Size Price Stock Quantity
500 μg USD 108 In-stock
1 mg USD 156 In-stock
5 mg USD 468 In-stock
10 mg USD 780 In-stock
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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 2 publication(s) in Google Scholar

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Cecropin B


    Cecropin B purchased from MedChemExpress. Usage Cited in: PeerJ. 2018 Jul 25;6:e5369.  [Abstract]

    Effects of Cecropin B and Cecropin DH on mRNA levels of inflammatory cytokines in 200 ng/mL LPS-stimulated RAW264.7 cells. Total RNA is analyzed for the expression of TNF-α, IL-1β, iNOS, MIP-1, MIP-2, IL-6 and GAPDH (loading control) by RT-PCR.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review


    Cecropin B has high level of antimicrobial activity and is considered as a valuable peptide antibiotic.

    IC50 & Target



    In Vitro

    Cecropin B-induces NF-κB activation playing a pivotal role in the suppression of CYP3A29 through disrupting the association of the PXR/retinoid X receptor alpha (RXR-α) complex with DNA sequences. Cecropin B activates pig liver cells by interacting with TLRs 2 and 4, which modulated NF-κB-mediated signaling pathways[1].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    In Vivo

    The wounds are moist with more exudation in C group, while that in other groups are dry without obvious exudation. The body temperature of the majority of the mice in each group is elevated, but the number of leucocytes in each group is lowered after operation. The quantity of bacteria in muscle in A group is obviously lower than that in M group and C group. The number of surviving mice after 4 PID in C group is evidently smaller than that in A and M groups( P<0. 05)[2].

    MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

    Molecular Weight




    CAS No.



    White to off-white



    Sequence Shortening



    Room temperature in continental US; may vary elsewhere.


    Sealed storage, away from moisture

    Powder -80°C 2 years
    -20°C 1 year

    *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

    Solvent & Solubility
    In Vitro: 

    H2O : 66.67 mg/mL (17.39 mM; Need ultrasonic)

    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 0.2608 mL 1.3039 mL 2.6078 mL
    5 mM 0.0522 mL 0.2608 mL 0.5216 mL
    10 mM 0.0261 mL 0.1304 mL 0.2608 mL
    *Please refer to the solubility information to select the appropriate solvent.
    In Vivo:
    • 1.

      Add each solvent one by one:  PBS

      Solubility: 50 mg/mL (13.04 mM); Clear solution; Need ultrasonic

    *All of the co-solvents are available by MedChemExpress (MCE).
    Purity & Documentation
    Animal Administration

    Thirty ICR mice are enrolled in the study, and the Pseudomonas aeruginosa infection model is reproduced by excision of the full layer of dorsal skin with an area of 1 cm x 1 cm. Then they are randomly divided into C (control, n=10, with wet compress of isotonic saline at 3 postinjury hour (PIH)) , M (with hydropathic compress of 100 g/L mafenide at 3 PIH), A (with wet compress of 1 000 mg/L Cecropin B at 3 PIH) groups. The changes in body temperature and hemogram in each group are determined before and 4 days after injury[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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    The dilution calculator equation

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
    × = ×
    C1   V1   C2   V2

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