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SML1815 Sigma-Aldrich

Fasnall benzenesulfonate salt

≥98% (HPLC)

Synonym: 5,6-Dimethyl-N-[1-(phenylmethyl)-3-pyrrolidinyl]thieno[2,3-d]pyrimidin-4-amine benzenesulfonate, N-(1-Benzylpyrrolidin-3-yl)-5,6-dimethylthieno[2,3-d] pyrimidin-4-amine benzenesulfonate

  • CAS Number 929978-58-5 (free base)

  • Empirical Formula (Hill Notation) C19H22N4S · C6H5SO3H

  • Molecular Weight 496.64



Related Categories Arachidonic Acid Cascade, Bioactive Small Molecule Alphabetical Index, Bioactive Small Molecules, Cell Biology, Cell Signaling and Neuroscience,
Quality Level   100
assay   ≥98% (HPLC)
form   powder
storage condition   desiccated
color   white to beige
solubility   DMSO: 10 mg/mL, clear
storage temp.   2-8°C
SMILES string   CC(S1)=C(C)C2=C1N=CN=C2NC3CN(CC4=CC=CC=C4)CC3.O=S(C5=CC=CC=C5)(O)=O


Biochem/physiol Actions

Fasnall is a fatty acid synthase (FASN or FAS) inhibitor (IC50 = 3.71 ?M by cell-free assay with 200 μM NADPH; IC50 = 147 and 213 nM against acetate and glucose lipids incorporation in HepG2 cells) composed of two enantiomers (HS-79 and HS-80) that selectively target FASN co-factor nucleotide-binding sites without affecting ACC, ZipK, AMPKα, AMPKγ, TRAP1, HSP70, NS5, IRAK2 nucleotide binding or the ATP-binding activity of BT474 cellular proteins. Fasnall is shown to completely block the proliferation in multiple breast cancer cultures at 50 μM as a result of apoptosis induction with much reduced cytotoxicity than C75 toward the non-tumorigenic cell line MCF10A. When administered via i.p. injection, Fasnall is efficacious in prolonging the survival of MMTV-Neu mice by effectively suppressing mammary adenocarcinoma tumor progression (15 mg/kg dosed alone twice weekly or 50 mg/kg dosed with carboplatin once weekly).

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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