Exam questionKROK 2Pharmacy ยท 2009
This substance is of blue colour but unlike the colouring substances it doesn't leave any stain. The powders prepared out of it are made according to the general rules. What substance is it?
Answer options
- Ethacridine lactate
- Copper sulfate
- Acrichine
- Furacilin
- Riboflavin
Correct answer
Copper sulfate
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