ChemGrid

CHEMGRID MOLECULE CARD

LEFLUNOMIDE

LEFLUNOMIDE in ChemGrid: 192 screened assays, 9 with significant responses. Explore chemical identifiers, strain activity and target evidence.

SPE01503927

Explore activity & SONAR
Chemical structure of LEFLUNOMIDE
Stored molecular structure
192Screened assays
9Significant assay responses
22Source-labelled target records

Identity and chemistry

ChemGrid identifier
SPE01503927
Molecular formula
C12F3H9N2O2
CAS registry number
75706-12-6
InChIKey
VHOGYURTWQBHIL-UHFFFAOYSA-N
Libraries
Spectrum, SPECMTS3
Other recorded names
LEFUNAMIDE; Leflunomide
Stored SMILESCc1oncc1C(=O)Nc1ccc(cc1)C(F)(F)F

Matched external records: PubChem 3899

Chemical identifiers and library names are reproduced from ChemGrid records. Missing values are omitted.

Measured chemical–genetic activity

192 measurements across 192 distinct library–species–strain assays; 9 assays have at least one significant response (|Z| ≥ 4, p ≤ 0.001, excluding flagged outliers).

Responses are indirect screening phenotypes. They do not establish that a strain gene is a direct molecular target. Strains and timepoints are retained as recorded; these counts are not counts of unique ORFs.

Up to 12 strongest recorded single-strain responses by absolute Z-score
StrainLibrarySpecies identifierZ-score
bem2SPECMTS34932-7.86
doc1SPECMTS34932-7.54
sac3SPECMTS34932-7.21
lat1SPECMTS34932-6.95
pfk2SPECMTS34932-6.62
swc5SPECMTS34932-5.35
sur2SPECMTS34932-4.54
hhf1SPECMTS34932-4.25
trk1SPECMTS34932-4.04

Spectrum compound-combination identifiers are excluded from this short table. The interactive profile retains the full measurements.

Recorded target evidence and yeast matches

Source annotations are shown separately from SONAR hypotheses. Evidence type and identity matching can vary; consult the linked source and interactive evidence panel.

TargetSourceYeast ORF / orthologue
Luciferin 4-monooxygenaseChEMBLNo stored yeast mapping
ATAD5 · ATPase family AAA domain-containing protein 5ChEMBLNo stored yeast mapping
CYP1A2 · Cytochrome P450 1A2ChEMBLNo stored yeast mapping
DHODH · Dihydroorotate dehydrogenase (quinone), mitochondrialChEMBLNo stored yeast mapping
DHODH · Dihydroorotate dehydrogenase (quinone), mitochondrial [CHEMBL1966]ChEMBLNo stored yeast mapping
Dhodh · Dihydroorotate dehydrogenase (quinone), mitochondrial [CHEMBL2383]ChEMBLNo stored yeast mapping
Dhodh · Dihydroorotate dehydrogenase (quinone), mitochondrial [CHEMBL2991]ChEMBLNo stored yeast mapping
HRH2 · Histamine H2 receptorChEMBLNo stored yeast mapping
HTT · HuntingtinChEMBLNo stored yeast mapping
LMNA · Prelamin-A/CChEMBLNo stored yeast mapping
NPC1 · NPC intracellular cholesterol transporter 1ChEMBLNCR1 YPL006W (ortholog_one2one)
NPSR1 · Neuropeptide S receptorChEMBLNo stored yeast mapping
RAB9A · Ras-related protein Rab-9AChEMBLYPT10 YBR264C (ortholog_many2many); YPT31 YER031C (ortholog_many2many); YPT1 YFL038C (ortholog_many2many); YPT32 YGL210W (ortholog_many2many); YPT52 YKR014C (ortholog_many2many); YPT6 YLR262C (ortholog_many2many); TEM1 YML064C (ortholog_many2many)
TDP1 · Tyrosyl-DNA phosphodiesterase 1ChEMBLTDP1 YBR223C (ortholog_one2one)
Luciferin 4-monooxygenaseChEMBL analogueNo stored yeast mapping
CYP1A2 · Cytochrome P450 1A2ChEMBL analogueNo stored yeast mapping
DHODH · Dihydroorotate dehydrogenase (quinone), mitochondrialChEMBL analogueNo stored yeast mapping
HTT · HuntingtinChEMBL analogueNo stored yeast mapping
LMNA · Prelamin-A/CChEMBL analogueNo stored yeast mapping
NPC1 · NPC intracellular cholesterol transporter 1ChEMBL analogueNCR1 YPL006W (ortholog_one2one)
NPSR1 · Neuropeptide S receptorChEMBL analogueNo stored yeast mapping
RAB9A · Ras-related protein Rab-9AChEMBL analogueYPT10 YBR264C (ortholog_many2many); YPT31 YER031C (ortholog_many2many); YPT1 YFL038C (ortholog_many2many); YPT32 YGL210W (ortholog_many2many); YPT52 YKR014C (ortholog_many2many); YPT6 YLR262C (ortholog_many2many); TEM1 YML064C (ortholog_many2many)

Structural activity predictions and SONAR

Stored structural activity predictions are available in the interactive profile, with assay-specific cutoffs and applicability-domain assessments.

SONAR ranks candidate targets through genetic and physical interaction evidence. Structural SONAR uses predicted strain responses; measured SONAR uses experimental responses. These are experimental hypotheses, not confirmed binding targets. Outside-domain predictions are treated as unknown.

Open the complete LEFLUNOMIDE research profile →

Sources and provenance

Screening measurements: ChemGrid chemical-genetic datasets. Wildenhain et al., Cell Systems (2015). Target annotations: sources named in the evidence table. Structure and library metadata: stored ChemGrid catalogue records.

Card snapshot: 2026-11-02. Linked interactive views may contain newer data.