As an extract from the researched prices for 
Pyrrolo[1,2-a]pyrazine-1,4-dione,hexahydro-3-(1H-imidazol-4-ylmethyl)-, (3S,8aS)- there are currently shown 11 prices in the last 10 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 2016 from USD 323.00 for 50 mg to USD 113.00 per 5 mg in 2022 .