Direct Violet 1_product_DataBase

Bioactivity	Direct Violet 1, an azo dye, is a textile dye. Direct Violet 1 is also the protein-protein interaction (PPI) between the SARS-CoV-2 spike protein and ACE2 inhibitor with IC50s of 1.47-2.63 µM[1][2].
Target	IC50: 1.47 µM (SARS-CoV-2-S-RBD binding to ACE2); 2.63 µM (SARS-CoV-S1S2 binding to ACE2); 2.11 µM (TNF-R1-TNFα binding)
Invitro	Direct Violet 1 inhibits SARS-CoV-2-S-RBD binding to human ACE2, inhibits SARS-CoV-S1S2 binding to ACE2, and inhibits TNF-R1 binding to TNFα with IC50 values of 1.47 µM, 2.63 µM, and 2.11 µM, respectively[1]. Direct Violet 1 inhibits SARS-CoV-2 pseudovirus entry into hACE2 expressing host cells in a concentration-dependent manner with an IC50 of 35.8 µM[1].
Name	Direct Violet 1
CAS	2586-60-9
Formula	C32H22N6Na2O8S2
Molar Mass	728.66
Appearance	Solid
Transport	Room temperature in continental US; may vary elsewhere.
Storage	4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Reference	[1]. Damir Bojadzic, et al. Small-Molecule In Vitro Inhibitors of the Coronavirus Spike-ACE2 Protein-Protein Interaction as Blockers of Viral Attachment and Entry for SARS-CoV-2. bioRxiv, 2020 Oct 22. [2]. Wafaa M Abd El-Rahim, et al. Genotoxicity studies on the removal of a direct textile dye by a fungal strain, in vivo, using micronucleus and RAPD-PCR techniques on male rats. J Appl Toxicol. 2008 May;28(4):484-90.

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