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Dihydromyricetin GABA Receptor agonist

Cat.No.S2399

Dihydromyricetin (Ampelopsin, Ampeloptin) is a natural antioxidant flavonoid from Ampelopsis grossedentata.
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Quality Control

Batch: Purity: 99.54%
99.54

Solubility

In vitro
Batch:

DMSO : 64 mg/mL (199.84 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 64 mg/mL

Water : ˂1 mg/mL

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In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

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Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
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Chemical Information, Storage & Stability

Molecular Weight 320.25 Formula

C15H12O8

Storage (From the date of receipt)
CAS No. 27200-12-0 Download SDF Storage of Stock Solutions

Synonyms Ampeloptin SMILES C1=C(C=C(C(=C1O)O)O)C2C(C(=O)C3=C(C=C(C=C3O2)O)O)O

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Mechanism of Action

Targets/IC50/Ki
GABAA receptor
In vitro
Dihydromyricetin shows antioxidant activity as an effective scavenger of 1,1-diphenyl-2-picrylhydrazyl radical (DPPH). It also inhibits the increase of lipid peroxidation (LPO) values in linolei acid system catalyzed by FeSO4-edetic acid. DHM (1 μM) as a novel anti-alcohol intoxication medication antagonizes both acute EtOH-induced potentiation of GABA(A)Rs and EtOH exposure/withdrawal-induced GABA(A)R plasticity and increases in GABA(A)R alpha4 subunit expression in hippocampus and cultured neurons.
In vivo
Dihydromyricetin (1 mg/kg, i.p.) counteracts acute alcohol (EtOH) intoxication, and also withdrawals signs in rats including tolerance, increased anxiety, and seizure susceptibity. LD50: Mice 1.41g/kg (i.p.)
References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-09-03)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05623501 UNKNOWN
Alcohol-Related Disorders
University of Southern California
2024-09-15 PHASE1
NCT03606694 UNKNOWN
Type 2 Diabetes Mellitus
University of Guadalajara
2019-10-30 PHASE2

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