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L-(+)-Ergothioneine

Cat.No.E2759

L-(+)-Ergothioneine(Ergothioneine), an imidazole-2-thione derivative of histidine betaine, is synthesized by certain bacteria and fungi. Ergothioneine is generally considered an antioxidant.
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Quality Control

Batch: E275901 Water]46 mg/mL]false]DMSO]Insoluble]false]Ethanol]Insoluble]false Purity: 99.99%
99.99

Solubility

In vitro
Batch:

Water : 46 mg/mL

DMSO : Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

Molarity Calculator

Mass Concentration Volume Molecular Weight
Dilution Calculator Molecular Weight Calculator

In vivo
Batch:

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg
g
μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO
%
% Tween 80
% ddH2O
% DMSO
+
%

Calculation results:

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.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight 229.3 Formula

C9H15N3O2S

Storage (From the date of receipt) 3 years -20°C powder
CAS No. 497-30-3 -- Storage of Stock Solutions

Read more about storage stability stock solution CAS number

Mechanism of Action

References

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-06-11)

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT07220187 NOT_YET_RECRUITING
Richter Syndrome; Transformed Chronic Lymphocytic Leukemia to Diffuse Large B-Cell Lymphoma; Transformed Small Lymphocytic Lymphoma to Diffuse Large B-Cell Lymphoma
SWOG Cancer Research Network
2026-08-31 PHASE3
NCT06477939 NOT_YET_RECRUITING
Glioblastoma
Institut de cancérologie Strasbourg Europe
2025-01-01 PHASE3
NCT07437287 NOT_YET_RECRUITING
Biliary Tract Cancer (BTC)
UNICANCER
2026-07 PHASE2; PHASE3
NCT07464886 RECRUITING
Mild Depression
University of Cincinnati
2026-02-26 PHASE3
NCT07615296 NOT_YET_RECRUITING
Atherosclerotic Cardiovascular Disease (ASCVD)
Beijing Anzhen Hospital
2027-01-01
NCT06822478 RECRUITING
Leishmaniasis, Cutaneous
Universidad de Antioquia
2026-03-11 PHASE3

Read more about Clinical Trials

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