4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine has a specific rotation of -339°. What are the mole percentages of the levorotatory and dextrorotatory enantiomers in the sample? NH₂ OH HO NH₂ cystine

4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine has a specific rotation of -339°. What are the mole percentages of the levorotatory and dextrorotatory enantiomers in the sample? NH₂ OH HO NH₂ cystine

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter23: Amines

Section: Chapter Questions

Problem 23.28P

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Question

4. A sample of the amino acid cystine has a specific rotation of -68°. Pure (-)-cystine
has a specific rotation of -339°. What are the mole percentages of the levorotatory
and dextrorotatory enantiomers in the sample?
NH₂
OH
HO
NH₂
cystine

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