What is the IUPAC name of CH3-CH(OH)-CH2-CHO ?

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3-HydroxyButanal this is the IUPAC name.
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When a functional group is attached at the end, we generally start the numbering from there. Hence it always gets the first position. So instead of butan-1-al, we write simply butanal. Both are correct.
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Answers

  • Brainly User
2014-10-30T21:13:45+05:30
3-hydroxybutan-1al  
 as aldehydes>alchohol                                                                          
1 5 1
2014-10-31T16:58:52+05:30

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3-HydroxyButanal :  IUPAC name. 

chemical formula - C4 H8 O2

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i write the explanation given by TPS in the comments as :

When a functional group is attached at the end, we generally start the numbering from there. Hence it always gets the first position. So instead of butan-1-al, we write simply butanal. 
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