BZiPAR (Rhodamine 110, bis-(N-CBZ-L-isoleucyl-L-prolyl-L-arginine amide), dihydrochloride) is a substrate for trypsin. The substrate has been reported to enter live cells and be hydrolyzed by lysosomal proteases. λ Ex/λ Em of end product (R110) = 496/520 nm Off-white to pink solid soluble in DMSO Store at 4°C and protect from light C70H88Cl2N14O13 MW: 1404.5