Lucifer Yellow CH lithium salt (LY CH lithium salt) is a widely used polar molecular tracer for studying neuronal morphology. The fluorescent molecule contains a carbohydrazide that allow the molecule to be aldehyde-fixable.    &lamba;Ex/&lamba; Em = 428/536 nm  Yellow solid soluble in water  Store at 4°C and protect from light  C13H9Li2N5O9S2  MW: 457  [67769-47-5]