Boc-QRR-pNA (Boc-Gln-Arg-Arg-pNA) is commonly used in biochemical research as a substrate for Kex2 protease. This substrate exhibits no absorbance at 405 nm. Upon cleavage by Kex2 protease at the RR site, it yields two fragments: Boc-Gln-Arg-Arg and pNA. The released pNA shows absorbance at 405 nm, and the absorbance intensity is directly proportional to its concentration. Specifications Cat NO. 20820ES10 Size 10 mg Product Specifications English Synonym Boc-Gln-Arg-Arg-pNA Molecular Formula C₂₈H₄₆O₈N₁₂ Molecular Weight 678.7 Appearance White powder Purity ≥99.59% Notes 1. Allow the product to equilibrate to room temperature before use.... ...Read More