Phthalide

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Phthalide \Phthal"ide\, n. [Phthalyl + anhydride.] (Chem.)
     A lactone ({C8H6O2}) obtained as a white crystalline
     substance by reduction of phthalyl chloride and other
     processes; hence, by extension, any one of the series of
     which phthalide proper is the type. [Written also
     {phthalid}.]


     [1913 Webster]
  
     Note:
           [PJC]
  
     2. Specifically: A fungicide ({C8H2Cl4O2}) which is a
        tetrachloro derivative of phthalide[1] proper; in this
        sense, the spelling {fthalide} is also used. It has CAS
        Registry Number 27355-22-2.
  
     Syn: Syn. 4,5,6,7-tetrachloro-1(3H)-isobenzofuranone; -- .
          [PJC]