MONSANTO IMPROVES COMMERCIAL-GRADE PARA

Nov 6, 2010 - Publication Date: April 20, 1959. Copyright © 1959 AMERICAN CHEMICAL SOCIETY. ACS Chem. Eng. News Archives. First Page Image...
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MONSANTO IMPROVES COMMERCIAL-GRADE

CH3

P>4/?/l-TOLUENESULFONYL Purified

CHLORIDE

isomer now more valuable as

intermediate

H i g h e r p u r i t y f r o m n o w M o n s a n t o p r o c e s s pi v o s 'Λw a y i m p r o v e m e n t i n /x/r