Description

• General description: for analysis and indicator
• Application: A ratiometric fluorescence strategy based on inner filter effect for Cu(2+)-mediated detection of acetylcholinesterase.: This study utilizes Alizarin Red S to develop a fluorescence-based method for detecting copper ions and acetylcholinesterase activity, important for environmental monitoring and medical diagnostics (Li et al., 2021 doi:10.1007/s00604-021-05044-0). Multiplex SERS Chemosensing of Metal Ions via DNA-Mediated Recognition.: Explores the complexation of Alizarin Red S with different metal ions, utilizing Surface-Enhanced Raman Spectroscopy (SERS) for sensitive detection, which can be applied in environmental analysis and health sciences (Guerrini and Alvarez-Puebla, 2019 doi:10.1021/acs.analchem.9b02385). Capsicum-Derived Biomass Quantum Dots Coupled with Alizarin Red S as an Inner-Filter-Mediated Illuminant Nanosystem for Imaging of Intracellular Calcium Ions.: This innovative approach uses Alizarin Red S in a composite nanosystem for advanced imaging techniques to monitor intracellular activities, offering potential in biomedical research and diagnostics (Chen et al., 2018 doi:10.1021/acs.analchem.8b04055). Ratiometric fluorescent probe based on gold nanoclusters and alizarin red-boronic acid for monitoring glucose in brain microdialysate.: Highlights the application of Alizarin Red S in developing a glucose monitoring system, which is critical for understanding metabolic processes in neurological studies (Wang et al., 2014 doi:10.1021/ac5023293).
• Analysis Note: Identity (UV/VIS-Spectrum): passes test1st transition range: pH 4.3 - pH 6.3 Lightly yellow - pink2nd transition range: pH 9.4 - pH 12.0 Brown orange - violetAbsorption maximum λ 1 (buffer pH 4.3): 418 - 424 nmAbsorption maximum λ 2 (buffer pH 6.3): 510 - 517 nmAbsorption maximum λ 3 (buffer pH 9.4): 444 - 450 nmAbsorption maximum λ 4 (buffer pH 12.0): 554 - 558 nmSpec. Absorptivity A 1%/1cm (λ1max; 0.01 g/l; buffer pH 4.3; calc. on dried substance): 135 - 180Spec. Absorptivity A 1%/1cm (λ2max; 0.01 g/l; buffer pH 6.3; calc. on dried substance): 145 - 210Spec. Absorptivity A 1%/1cm (λ3max; 0.01 g/l; buffer pH 9.4; calc. on dried substance): 170 - 230Spec. Absorptivity A 1%/1cm (λ4max; 0.01 g/l; buffer pH 12.0; calc. on dried substance): 340 - 520Loss on drying (110 °C): ≤ 10 %