| 1. | It is the L-stereoisomer of racemethorphan ( methorphan ).
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| 2. | Metalaxyl-M is the trade name of the optically pure stereoisomer.
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| 3. | It is a stereoisomer and pseudo-enantiomer of cinchonine.
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| 4. | It is a stereoisomer and pseudo-enantiomer of cinchonidine.
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| 5. | The ( + )-enantiomer is the active stereoisomer.
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| 6. | The most common form is the ( 5R ) stereoisomer found in collagen.
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| 7. | Upon subsequent removal of the auxiliary, the desired aldol stereoisomer is revealed.
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| 8. | The other stereoisomer is (-)-catechin or ent-catechin.
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| 9. | Levoamphetamine is the levorotary stereoisomer of the amphetamine molecule.
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| 10. | Endrin is a stereoisomer of dieldrin with comparable properties, though endrin degrades more easily
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