Which one of the following structures has the IUPAC name 3-ethynyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?
3-ethynyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid
Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is:
The IUPAC name of CH2=CHCHOH-CH2CHO is: