1. Apoptosis
    NF-κB
  2. TNF Receptor
    NF-κB
  3. Forsythoside B

Forsythoside B 

Cat. No.: HY-N0029 Purity: 98.37%
Handling Instructions

Forsythoside B is a phenylethanoid glycoside isolated from the leaves of Lamiophlomis rotata Kudo, a Chinese folk medicinal plant for treating inflammatory diseases and promoting blood circulation. Forsythoside B could inhibit TNF-alpha, IL-6, IκB and modulate NF-κB.

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

Forsythoside B Chemical Structure

Forsythoside B Chemical Structure

CAS No. : 81525-13-5

Size Price Stock Quantity
Solution
10 mM * 1 mL in DMSO USD 120 In-stock
Estimated Time of Arrival: December 31
Solid + Solvent
10 mM * 1 mL
ready for reconstitution
USD 120 In-stock
Estimated Time of Arrival: December 31
Solid
5 mg USD 108 In-stock
Estimated Time of Arrival: December 31
10 mg USD 144 In-stock
Estimated Time of Arrival: December 31
25 mg USD 288 In-stock
Estimated Time of Arrival: December 31
50 mg USD 456 In-stock
Estimated Time of Arrival: December 31
100 mg USD 768 In-stock
Estimated Time of Arrival: December 31
200 mg   Get quote  
500 mg   Get quote  

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Based on 2 publication(s) in Google Scholar

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Description

Forsythoside B is a phenylethanoid glycoside isolated from the leaves of Lamiophlomis rotata Kudo, a Chinese folk medicinal plant for treating inflammatory diseases and promoting blood circulation. Forsythoside B could inhibit TNF-alpha, IL-6, IκB and modulate NF-κB.

IC50 & Target

TNF-α

 

NF-κB

 

In Vitro

Forsythoside B concentration-dependently down-regulates the levels of TNF-α, IL-6 and high-mobility group-box 1 protein (HMGB1) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells, inhibits the IκB kinase (IKK) pathway and modulated nuclear factor (NF)- κB[1].

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

In Vivo

Intravenous injection of forsythoside B alone or plus imipenem reduces serum levels of TNF-α, IL-6, HMGB1, triggering receptor expressed on myeloid cells (TREM-1) and endotoxin, while the serum level of IL-10 is up-regulated and myeloperoxidase (MPO) in lung, liver and small intestine is reduced[1]. Forsythoside B at doses higher than 8 mg/kg produces a significant neuroprotective potential in cerebral ischemia and reperfusion rats. Forsythoside B (20 mg/kg) demonstrates significant neuroprotective activity even after delayed administration at 1 h, 3 h and 5 h after cerebral ischemia and reperfusion. Forsythoside B 20 mg/kg attenuates histopathological damage as demonstrated by smaller brain infarct size and brain edema, decreased cerebral Evans blue extravasation and myeloperoxidase activity, inhibited cerebral phosphor-IκB-α and NF-κB expression[2]. Forsythoside B shows a significant recovery in myocardial function with improvement of LVSP and +/-dp/dt(max). The myocardial infarct volume, serum levels of Tn-T, TNF-alpha and IL-6, content of MDA and MPO activity in myocardial tissue are all reduced, protein expression of HMGB1, phosphor-I kappaB-alpha and phosphor-NF-kappaB are down-regulated, while attenuate the decrease of SOD and GPx activities[3].

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

Molecular Weight

756.70

Formula

C34H44O19

CAS No.
SMILES
Structure Classification
Source
Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 125 mg/mL (165.19 mM; Need ultrasonic)

H2O : 110 mg/mL (145.37 mM; Need ultrasonic)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.3215 mL 6.6076 mL 13.2153 mL
5 mM 0.2643 mL 1.3215 mL 2.6431 mL
10 mM 0.1322 mL 0.6608 mL 1.3215 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (2.75 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (2.75 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (2.75 mM); Clear solution

*All of the co-solvents are available by MCE.
References
Cell Assay
[1]

Forsythoside B is dissolved in sterile saline solution and added to the medium at various concentrations (from 0.1 to 10 μM) and incubated with LPS stimulated RAW264.7 cells. Cell-free supernatants are collected after Forsythoside B treatment for 24 h. Cell viability is assessed by measuring lactate dehydrogenase (LDH) in the medium[1].

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

Animal Administration
[2]

Rats: Forsythoside B is dissolved in sterilized saline. For the dose–response study, forsythoside B at doses of 1.3, 3.2, 8, 20 or 50 mg/kg is administered as an intravenous bolus injection at 15 min after reperfusion. The sham or vehicle-treated rats are injected with saline. Neurological deficits are determined at 23 h after reperfusion followed by brain infarct volume examination[2].

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

References

Purity: 99.99%

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