SML0287
680C91
≥98% (HPLC)
Synonym(s):
6-Fluoro-3-[(1E)-2-(3-pyridinyl)ethenyl)-1H-indole
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About This Item
Empirical Formula (Hill Notation):
C15H11FN2
CAS Number:
Molecular Weight:
238.26
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77
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Quality Level
Assay
≥98% (HPLC)
form
powder
color
white to beige
solubility
DMSO: ≥10 mg/mL
storage temp.
2-8°C
SMILES string
Fc1ccc2c(\C=C\c3cccnc3)c[nH]c2c1
InChI
1S/C15H11FN2/c16-13-5-6-14-12(10-18-15(14)8-13)4-3-11-2-1-7-17-9-11/h1-10,18H/b4-3+
InChI key
YBSDQTBCNYWBMX-ONEGZZNKSA-N
Application
680C91 has been used:
- as a tryptophan 2,3 dioxygenase (TDO) inhibitor to study its effects on the pigmentation in Doryteuthis pealeii embryos
- as a TDO inhibitor to study its effects on esophageal squamous cell carcinoma in xenograft tumor assay
- as a tryptophan 2,3 dioxygenase 2 (TDO2) inhibitor to study its effects on toxic fragment formation in human embryonic kidney cells
Biochem/physiol Actions
680C91 is a potent inhibitor of the enzyme tryptophan 2,3-dioxygenase (TDO), which directs the conversion of trypophan to kynurenin. Kynurenin has recently been identified as an endogenous lignd of the arylhydrocarbon receptor (AHR). TDO is highly expressed in glioma cells, and contributes to AHR-mediated glioma cell survival and suppression of anti-tumor immune responses.
680C91 shows no inhibitory effects against monoamine oxidase A and B, indoleamine 2,3-dioxygenase and serotonin (5-HT) uptake, and 5-HT1A,1D,2A, and 2C receptors.
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Tryptophan 2, 3-dioxygenase 2 controls M2 macrophages polarization to promote esophageal squamous cell carcinoma progression via AKT/GSK3 beta IL-8 signaling pathway
Zhao Y, et al.
Acta pharmaceutica Sinica. B (2021)
Carlo Breda et al.
Proceedings of the National Academy of Sciences of the United States of America, 113(19), 5435-5440 (2016-04-27)
Metabolites of the kynurenine pathway (KP) of tryptophan (TRP) degradation have been closely linked to the pathogenesis of several neurodegenerative disorders. Recent work has highlighted the therapeutic potential of inhibiting two critical regulatory enzymes in this pathway-kynurenine-3-monooxygenase (KMO) and tryptophan-2,3-dioxygenase
Karthyayani Rajamani et al.
Neuropharmacology, 117, 434-446 (2017-02-23)
Spinocerebellar ataxia type 3 or Machado-Joseph disease (SCA3/MJD) is characterized by the repetition of a CAG codon in the ataxin-3 gene (ATXN3), which leads to the formation of an elongated mutant ATXN3 protein that can neither be denatured nor undergo
Different effects of tryptophan 2,3-dioxygenase inhibition on SK-Mel-28 and HCT-8 cancer cell lines.
Sara Paccosi et al.
Journal of cancer research and clinical oncology, 146(12), 3155-3163 (2020-08-11)
Indoleamine 2,3-dioxygenase-1 (IDO1) and more recently, tryptophan 2,3-dioxygenase (TDO), are tryptophan-catabolizing enzymes with immunoregulatory properties in cancer. IDO1 is more expressed than TDO in many tumours including melanomas; however, IDO inhibitors did not give expected results in clinical trials, highlighting
M Salter et al.
Biochemical pharmacology, 49(10), 1435-1442 (1995-05-17)
The effects of a novel inhibitor 680C91 ((E)-6-fluoro-3-[2-(3- pyridyl)vinyl]-1H-indole) of the key enzyme of tryptophan catabolism tryptophan 2,3-dioxygenase (TDO) (EC 1.13.11.11), were examined on tryptophan catabolism in vitro and in vivo and on brain levels of tryptophan, serotonin (5-HT) and
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