1. Metabolic Enzyme/Protease
  2. Indoleamine 2,3-Dioxygenase (IDO)
  3. (S)-Indoximod

(S)-Indoximod (Synonyms: 1-Methyl-L-tryptophan; (S)-NLG-8189)

Cat. No.: HY-N0707 Purity: 99.03%
Handling Instructions

(S)-Indoximod (1-Methyl-L-tryptophan) is an inhibitor of indoleamine 2,3-dioxygenase (IDO). (S)-Indoximod can be used for the research of cancer.

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

(S)-Indoximod Chemical Structure

(S)-Indoximod Chemical Structure

CAS No. : 21339-55-9

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 55 In-stock
Estimated Time of Arrival: December 31
100 mg USD 50 In-stock
Estimated Time of Arrival: December 31
200 mg   Get quote  
500 mg   Get quote  

* Please select Quantity before adding items.

Customer Review

Based on 1 publication(s) in Google Scholar

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(S)-Indoximod (1-Methyl-L-tryptophan) is an inhibitor of indoleamine 2,3-dioxygenase (IDO). (S)-Indoximod can be used for the research of cancer[1][2].

IC50 & Target

Indoleamine 2,3-Dioxygenase (IDO)[1]

Molecular Weight







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Room temperature in continental US; may vary elsewhere.


4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

DMSO : 5 mg/mL (22.91 mM; ultrasonic and adjust pH to 5 with HCl)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.5819 mL 22.9095 mL 45.8190 mL
5 mM 0.9164 mL 4.5819 mL 9.1638 mL
10 mM 0.4582 mL 2.2910 mL 4.5819 mL
*Please refer to the solubility information to select the appropriate solvent.
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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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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


(S)-Indoximod1-Methyl-L-tryptophan (S)-NLG-8189Indoleamine 2,3-Dioxygenase (IDO)indoleamine2,3-dioxygenaseIDOcancerInhibitorinhibitorinhibit

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