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A pseudocoelom lacks
α,β-unsaturated Aldehyde
An organic compound with a double bond between the alpha and beta carbon atoms and a carbonyl group at the alpha position.
β-diketone
A class of organic compounds containing two keto groups (C=O) attached to adjacent carbon atoms.
β-ketoester
A compound containing a keto group (=O) and an ester group (-COOR) separated by a carbon; it's a versatile intermediate in organic synthesis.
Conjugated Alkyne
A hydrocarbon compound that contains a conjugated system of alternating double and triple bonds within its carbon chain.
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