1781834-99-8

1781834-99-8 structure

Name: ARRY 520 trifluoroacetate
Chemical Name: ARRY-520
CAS Number: 1781834-99-8
Molecular Formula: C₂₂H₂₃F₅N₄O₄S
Molecular Weight: 534.499
Create Date: 2021-01-10 19:58:32
Modify Date: 2025-09-27 05:16:42
Filanesib, also known as ARRY-520, is a synthetic, small molecule targeting the kinesin spindle protein (KSP) with potential antineoplastic activity. KSP inhibitor ARRY-520 specifically inhibits KSP (kinesin-5 or Eg5), resulting in activation of the spindle assembly checkpoint, induction of cell cycle arrest during the mitotic phase, and consequently cell death in tumor cells that are actively dividing. Because KSP is not involved in postmitotic processes, such as neuronal transport, this agent does not cause the peripheral neuropathy that is often associated with tubulin-targeting agents.

Name	ARRY-520
Synonyms	Acetic acid, 2,2,2-trifluoro-, compd. with (2S)-2-(3-aminopropyl)-5-(2,5-difluorophenyl)-N-methoxy-N-methyl-2-phenyl-1,3,4-thiadiazole-3(2H)-carboxamide (1:1) (2S)-2-(3-Aminopropyl)-5-(2,5-difluorophenyl)-N-methoxy-N-methyl-2-phenyl-1,3,4-thiadiazole-3(2H)-carboxamide trifluoroacetate (1:1) ARRY-520