INCB024360 analogue(IDO-IN-1)

Catalog No. size PriceQuantity
M6567-2 2mg solid $103
M6567-10 10mg solid $391


INCB14943, also known as INCB024360-analog, IDO5L and IDO-IN-2 with CAS#914471-09-3, is a potent and orally available hydroxyamidine and inhibitor of indoleamine 2, 3-dioxygenase (IDO1) with potential immunomodulating and antineoplastic activities. INCB024360-analog is a potent (HeLa IC50=19 nM) competitive inhibitor of IDO. Testing of INCB024360-analog in mice demonstrated pharmacodynamic inhibition of IDO, as measured by decreased kynurenine levels (>50%) in plasma and dose dependent efficacy.

Product information

CAS Number: 914471-09-3

Molecular Weight: 271.64

Formula: C9H7ClFN5O2







INCB 14943



Chemical Name:  4-amino-N-(3-chloro-4-fluorophenyl)-N'-hydroxy-1,2,5-oxadiazole-3-carboximidamide

Smiles: NC1=NON=C1C(NC1=CC(Cl)=C(F)C=C1)=NO


InChi: InChI=1S/C9H7ClFN5O2/c10-5-3-4(1-2-6(5)11)13-9(14-17)7-8(12)16-18-15-7/h1-3,17H,(H2,12,16)(H,13,14)

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Solubility: Soluble in DMSO, not in water

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined.

HS Tariff Code: 382200

How to use

In Vitro:

IDO5L (Compound 5l) is a potent (HeLa IC50=19 nM) inhibitor of IDO. IDO5L is one of the highest potent inhibitors of the IDO1 (IC50=19 nM, in HeLa cell assay).

In Vivo:

Testing of IDO5L in mice demonstrates pharmacodynamic inhibition of IDO, as measured by decreased kynurenine levels (>50%) in plasma and dose dependent efficacy in mice bearing GM-CSF-secreting B16 melanoma tumors. Initial oral pharmacokinetic studies show that IDO5L is rapidly cleared (t1/2<0.5 h) and that oral administration will not be a suitable dosing method for in vivo studies. The measured plasma exposure (2.5 μM) of IDO5L during this period exceeded our calculated mouse protein binding adjusted B16 cellular IC50 (PBadjIC50=1.0 μM, murine cellular B16 IC50=46 nM). Notably, kynurenine levels increase back to baseline after 4 h as IDO5L exposure levels decreased below the mouse PBadjIC50 from 1.0 to 0.1 μM.


  1. Devaraja K. Current Prospects of Molecular Therapeutics in Head and Neck Squamous Cell Carcinoma. Pharmaceut Med. 2019 Aug;33(4):269-289. doi: 10.1007/s40290-019-00288-x. PubMed PMID: 31933185.
  2. Chu CE, Porten SP, Grossfeld GD, Meng MV. Role of Indoleamine-2,3-Dioxygenase Inhibitors in Salvage Therapy for Non-Muscle Invasive Bladder Cancer. Urol Clin North Am. 2020 Feb;47(1):111-118. doi: 10.1016/j.ucl.2019.09.013. Review. PubMed PMID: 31757294.
  3. Rohrig UF, Reynaud A, Majjigapu SR, Vogel P, Pojer F, Zoete V. Inhibition Mechanisms of Indoleamine 2,3-Dioxygenase 1 (IDO1). J Med Chem. 2019 Oct 10;62(19):8784-8795. doi: 10.1021/acs.jmedchem.9b00942. Epub 2019 Sep 26. PubMed PMID: 31525930.

Products are for research use only. Not for human use.

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