Lys-Nε-SPDB-DM4 is a drug-linker conjugate composed of a potent a tubulin inhibitor DM4 and a linker Lys-Nε-SPDB to make antibody drug conjugate (ADC).
N-(4-Chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidin-2-yl)-2,2-dimethyl propanamide belongs to Heterocyclic Compounds - Purine; Intermediates and Building Blocks - Nucleoside base, Electrophile; Scaffold and Template.
4-Methylumbelliferyl β-D-N,N'-diacetylchitobioside (4-μU-(GlcNAc)2) is a fluorogenic substrate for chitinases and chitobiosidases. 4-μU-(GlcNAc)2 is cleaved by chitinases and chitobiosidases to release the fluorescent moiety 4-μU. 4-μU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high pH (7.12-10.3), respectively, and an emission maximum ranging from 445 to 455 nm, increasing as pH decreases.