Certificate of Analysis

 

Product Name: Arg-Arg-Arg-Arg
Catalog Number: M50864
CAS Number: 26791-46-8

Physical and Chemical Properties
Formula: C24H50N16O5
Molecular Weight: 642.76
Storage: Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Chemical Structure: Arg-Arg-Arg-Arg Structure
Analytical Data
QC Standard:
H-NMR: Consistent with structure
Product Information
Description: Tetraarginine (RRRR), consisting of four arginines, is used in cell-penetrating peptide-based gene delivery vehicles.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.