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Ziftomenib

Chemical FDA Substance Registry (openFDA)
Chemical Identification
CAS Number2134675-36-6
INCI Name4-methyl-5-[[4-[[2-(methylamino)-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidin-4-yl]amino]piperidin-1-yl]methyl]-1-[(2S)-2-(4-methylsulfonylpiperazin-1-yl)propyl]indole-2-carbonitrile
PubChem CID 138497449
Molecular FormulaC33H42F3N9O2S2
InChIKeyInChI=1S/C33H42F3N9O2S2/c1-
SMILESCC1=C(C=CC2=C1C=C(N2C[C@H](C)N3CCN(CC3)S(=O)(=O)C)C#N)CN4CCC(CC4)NC5=C6C=C(SC6=NC(=N5)NC)CC(F)(F)F
Known Aliases (9)
Common Name
KO-539 KO539 Menin-Mixed Lineage Leukemia Protein-Protein Interaction Inhibitor KO 539 ziftomenib [INN] ZIFTOMENIB [USAN] Ziftomenib [WHO-DD]
Scientific Name
1H-Indole-2-carbonitrile, 4-methyl-5-[[4-[[2-(methylamino)-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidin-4-yl]amino]-1-piperidinyl]methyl]-1-[(2S)-2-[4-(methylsulfonyl)-1-piperazinyl]propyl]- 4-Methyl-5-[[4-[[2-(methylamino)-6-(2,2,2-trifluoroethyl)thieno[2,3-d]pyrimidin-4-yl]amino]-1-piperidinyl]methyl]-1-[(2S)-2-[4-(methylsulfonyl)-1-piperazinyl]propyl]-1H-indole-2-carbonitrile (7S)-8⁴-(methanesulfonyl)-5⁴,7-dimethyl-1²-(methylamino)-1⁶-(2,2,2-trifluoroethyl)-2-aza-1(4)-thieno[2,3-d]pyrimidina-5(5,1)-indola-8(1)-piperazina-3(4,1)-piperidinaoctaphane-5²-carbonitrile
Data Sources (1)
Source Source ID Name in Source Properties
FDA Substance Registry (openFDA) 4MOD1F4ENC Ziftomenib CAS: 2134675-36-6
INN: 11651
USAN: KL-149
SMS_ID: 300000020731
PUBCHEM: 138497449
FDA UNII: 4MOD1F4ENC
NCI_THESAURUS: C164227
FDA ORPHAN DRUG: 697819
Record Info
IDBNKgERSnxG2Ly3MNvc3RZw
CreatedApril 10, 2026, 9:48 p.m.
ModifiedApril 10, 2026, 11:35 p.m.
EnrichedApril 11, 2026, 12:09 a.m.
Data SourceFDA Substance Registry (openFDA)