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In an TLC experiment with paprika, which red spot is capsanthi9n and which is capsorbin? Is it the one that travels the farthest or least? How can You tell?

Why are the paprika pigments colored, while common analgesics, such as aspirin, ibuprofen, acetaminophen, and caffeine, are colorless?

If you were to test racemic ibuprofen by tlc, how many spots would you get after developing the plate? why?

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