... × concentrated redissolving solution (50 mL).................. transparent cap10) 2-Nitrobenzaldehyde(C7H5NO3) solution (10 mL)........................... white cap2. Food Safety ELISA test kit CatalogueProduct CodeProduct NameSpecSensitivity (ppb ... 40 countries, such as United States, Belgium, France, Korea, Germany, Singapore etc.*Delivery time: 1-3 days after confirmation by FedEx ...