Product overview

Name RS-1
Alternative names RS1, RAD51-Stimulatory Compound-1,
Purity >99%
Description hRAD51 stimulator. Enhances CRISPR genome editing efficiency.
Write Your Own Review
You're reviewing:RS-1
Rate this item:

Biological Data

Biological description

Stimulator of the homologous recombination protein hRAD51. Enhances the DNA binding and homologous recombination activities of hRAD51.

Improves efficiency of HDR (homology-directed repair) 3- to 6-fold (depending on locus and transfection method).

Also enhances Cas9- and TALEN-mediated knock in efficiency in vitro and in vivo. Increases knock-in efficiency in vitro by 2- to 5-fold at different loci and achieves multi-fold improvement in vivo.

Additionally promotes significant anti-tumor responses.

Solubility & Handling

Storage instructions Room temperature
Solubility overview Soluble in DMSO (100 mM)
Important This product is for RESEARCH USE ONLY and is not intended for therapeutic or diagnostic use. Not for human or veterinary use.



More Info


More Info

Chemical Data

Purity >99%
Chemical name 4-Bromo-N-(4-bromophenyl)-3-[[(phenylmethyl)amino]sulfonyl]benzamide
Molecular Weight 524.2
Chemical structure RS-1 [312756-74-4] Chemical Structure
Molecular Formula C20H16N2O3SBr2
CAS Number 312756-74-4
PubChem identifier 1039737
SMILES C1=CC=C(C=C1)CNS(=O)(=O)C2=C(C=CC(=C2)C(=O)NC3=CC=C(C=C3)Br)Br
Source Synthetic
InChi InChI=1S/C20H16Br2N2O3S/c21-16-7-9-17(10-8-16)24-20(25)15-6-11-18(22)19(12-15)28(26,27)23-13-14-4-2-1-3-5-14/h1-12,23H,13H2,(H,24,25)
MDL number MFCD00348720
Appearance Brown solid

References for RS-1

References are publications that support the biological activity of the product
  • RS-1 enhances CRISPR/Cas9- and TALEN-mediated knock-in efficiency.

    Song et al (2016) Nat Commun 28 : 7-10548
  • Nuclear domain 'knock-in' screen for the evaluation and identification of small molecule enhancers of CRISPR-based genome editing.

    Pinder et al (2015) Nucleic Acids Res. 43(19) : 9379-92
  • The RAD51-stimulatory compound RS-1 can exploit the RAD51 overexpression that exists in cancer cells and tumors.

    Mason et al (2014) Cancer Res 74(13) : 3546-55
  • A chemical compound that stimulates the human homologous recombination protein RAD51.

    Jayathilaka et al (2008) Proc Natl Acad Sci U S A. 105(41) : 15848-53

4 Item(s)