We don't have synonyms for urethanes yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are urethane, urethans and urethan.
(n) :
(organic chemistry, uncountable) A white crystalline organic compound, ethyl-carbamate, NH₂COOC₂H₅, used in the synthesis of other organic compounds.
(n) :
(organic chemistry, countable) Any compound consisting of this general structure.
(n) :
(organic chemistry, uncountable) A white crystalline organic compound, ethyl-carbamate, NH₂COOC₂H₅, used in the synthesis of other organic compounds.
(n) :
(organic chemistry, countable) Any compound consisting of this general structure.