The structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is?
Now, 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid
Word root is hex ⇒ 6 carbons
Now, 3-en and 5-ynoic acid ⇒ double bond at C3
Triple bond at C5
Oic acid ⇒ -COOH group at C1
3-Ethyl-2-hydroxy-4-methyl (Hydroxy is the prefix of -OH)
This is the final structure