phthalic anhydride

noun

Definition of phthalic anhydride 

: a crystalline cyclic acid anhydride C8H4O3 used especially in making alkyd resins

First Known Use of phthalic anhydride

1855, in the meaning defined above

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The first known use of phthalic anhydride was in 1855

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phthalic anhydride

noun

Medical Definition of phthalic anhydride 

: a crystalline cyclic acid anhydride C8H4O3 that is used especially in making alkyd resins and is a structural part of thalidomide

More from Merriam-Webster on phthalic anhydride

Britannica.com: Encyclopedia article about phthalic anhydride

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