The Tissue-Tek Formaldehyde Safety System (now called Neutralex) is a colorimetric aldehyde quantification assay kit that eliminates the upfront pH measurement1 based on 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (Purpald or variant). It has been designed specifically to treat and dispose of formalin/aldehyde waste. It is stamped with the California Environmental Protection Agency’s seal to indicate non-hazardous drain-safe waste. How […]
