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SML3288

Sigma-Aldrich

WX8

≥98% (HPLC)

Synonym(s):

1H-Indole-3-carbaldehyde [4-anilino-6-(4-morpholinyl)-1,3,5-triazin-2-yl]hydrazone, 1H-Indole-3-carboxaldehyde, [4-(4-morpholinyl)-6-(phenylamino)-1,3,5-triazin-2-yl]hydrazone, Ro 91-4714, Ro-91-4714

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About This Item

Empirical Formula (Hill Notation):
C22H22N8O
CAS Number:
232935-92-1
Molecular Weight:
414.46
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

100

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

SMILES string

C1(NC2=CC=CC=C2)=NC(N/N=C/C3=CNC4=C3C=CC=C4)=NC(N5CCOCC5)=N1

Biochem/physiol Actions

WX8 (Ro 91-4714) is a selective phosphoinositide kinase PIKfyve inhibitor that disrupts lysosome fission via tubulation, lysosomal trafficking, and heterotypic lysosomes-autophagosomes fusion (0.1-1 µM; U2OS), but not homotypic lysosome fusion. WX8 exhibits cancer-selective antiproliferation activity (IC50 = 48 nM/A375, 200 nM/U2OS; IC50 >10 µM/non-cancer 293T & HFF) with a higher potency than the PIKfyve inhibitor YM201636, or the lysosomal inhibitors chloroquine & hydroxychloroquine (A375 IC50 = 119 nM, 1.7 µM, 1.9 µM, repectively).

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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Ajit Roy et al.
Molecular oncology, 18(4), 988-1011 (2024-02-28)
Inhibitors specifically targeting the 1-phosphatidylinositol 3-phosphate 5-kinase (PIKFYVE) disrupt lysosome homeostasis, thereby selectively terminating autophagy-dependent human cancer cells in vivo as well as in vitro without harming the viability of nonmalignant cells. To elucidate the mechanism by which PIKFYVE inhibition
Ajit Roy et al.
Autophagy, 19(9), 2464-2484 (2023-02-22)
Although PIKFYVE phosphoinositide kinase inhibitors can selectively eliminate PIKFYVE-dependent human cancer cells in vitro and in vivo, the basis for this selectivity has remained elusive. Here we show that the sensitivity of cells to the PIKFYVE inhibitor WX8 is not

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