As an extract from the researched prices for
N-Ethyl-N-(3-sulfopropyl)-m-toluidine sodium salt (TOPS) there are currently shown 26 prices in the last 8 years for CAS equal products. This small overview is intended to serve as a guide and trend.
Prices are in USD and range in year 2018 from USD 190.00 for 1 g to USD 100.00 per 500 mg in 2023 .