NSC 617145 is a helicase inhibitor used in the treatment of Werner syndrome helicase and acts synergistically with Mitomycin C, an antitumor antibiotic. It is used as antineoplastic.||Synonyms:|1,1'-(2,2-dimethyl-1,3-propanediyl)bis[3,4-dichloro-1H-Pyrrole-2,5-dione||CAS No:|203115-63-3||Molecular Formula:|C₁₃H₁₀Cl₄N₂O₄||Molecular Weight:|400.04||Purity:|≥98% (HPLC)||Appearance:|White to off-white powder||Solubility (20mM):|DMSO||Microanalysis:|Calculated: %C: 38.60, %H: 2.62, %N: 6.92||Method for Determining Identity:|Proton NMR Spectroscopic and Mass Spectrometric analysis||Storage and Stability:|Long-term storage is recommended at -20°C. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap.