Description General description 7-Amino-4-methylcoumarin (coumarin120) is an aminocoumarin laser dye that can emit laser in the range of 370-760 nm. It has three intermolecular hydrogen bonded structures with C-H···O and N-H····O. Application Coumarin 120 may be used as an antibacterial agent against MDR isolates of M. tuberculosis as it impacts the cell morphology. It may also be used as an electron donor (amino groups) to transfer charge in a fluorescent sensor that can be used for the detection of mercury ions in aqueous media. Packaging 100, 500 mg in poly bottle