Name: 680C91
Brand: Selleck Chemicals
SKU: S8997
Rating: 5 (3 reviews)

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Quality Control

Batch: S899701 DMSO]48 mg/mL]false]Ethanol]25 mg/mL]false]Water]Insoluble]false Purity: 99.64%

Cited in Nature Medicine for its top-tier quality
COA
NMR
HPLC
SDS
Datasheet

99.64

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) PDE phosphatase PPAR Vitamin Carbohydrate Metabolism Mitochondrial Metabolism
Other IDO/TDO Inhibitors	Epacadostat (INCB024360) IDO-IN-2 Indoximod Navoximod PF-06840003 Linrodostat (BMS-986205) Epacadostat (INCB024360) analogue LM10 IDO inhibitor 1 Erianin

Chemical Information, Storage & Stability

Molecular Weight	238.26	Formula	C₁₅H₁₁FN₂	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	163239-22-3	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	C1=CC(=CN=C1)C=CC2=CNC3=C2C=CC(=C3)F

Solubility

In vitro
Batch:

DMSO : 48 mg/mL (201.46 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 25 mg/mL

Water : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	2.400mg/ml (10.07mM)	Taking the 1 mL working solution as an example, add 50 μL of 48 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.300mg/ml (1.26mM)	Taking the 1 mL working solution as an example, add 50 μL of 6 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

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

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

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.

Mechanism of Action

Targets/IC₅₀/Ki	TDO (Cell-free assay) 51 nM(Ki)
In vitro	68OC91 is a potent (Ki = 51 nM) and selective TDO inhibitor with no inhibitory activity against indoleamine 2,3-dioxygenase (EC 1.13.11.17), monoamine oxidase A and B, 5-HT uptake and 5-HT_1A,1D,2A and _2c receptors at a concentration of 10 μM. 68OC91 has no effect on the binding of tryptophan to serum albumin in plasma and inhibited TDO competitively with respect to its substrate tryptophan. 68OC91 inhibits the catabolism of tryptophan by rat liver cells and rat liver perfused in situ.
In vivo	The catabolism of L-[ring-2-¹⁴C]-tryptophan and a load dose of tryptophan (100 mg/kg) in vivo are inhibited by prior administration of 68OC91. Administration of 68OC91 alone produces marked increases in brain tryptophan, 5-HT and 5-HIAA. A load dose of tryptophan (100 mg/kg), producing increases in brain tryptophan 4-fold greater than that seen with 68OC91, does not increase brain 5-HT and 5-HIAA to levels greater than those seen with 68OC91 and produces a shorter-lasting increase in these parameters.
References	[1] https://pubmed.ncbi.nlm.nih.gov/7539265/ [2] https://pubmed.ncbi.nlm.nih.gov/31753057/

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680C91 IDO/TDO inhibitor

Chemical Structure

Molecular Weight: 238.26