As an extract from the researched prices for 
1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid there are currently shown 13 prices in the last 9 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 2017 from USD 78.00 for 1 g to USD 63.00 per 500 mg in 2020 .