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LONZA Malononitrile. You can't beat it. Buy it·

At a guaranteed 99%, LONZA's malono- polymers and charge-transfer salts. Malononitrile nitrile is unbeatably pure, and the LONZA pro- undergoes the typical nitrile reactions of hydro-prietary one-step process assures you of a ready lysis and reduction. Moreover, its activated supply in industrial quantities. methylene group reacts readily with carbonyl

Because of its high reactivity, malononitrile groups, alkyl halides and halogens. But then again, has already found commercial use in the produc- it is directly useful as an additive in detergents, tion of vitamin Bj and numerous drugs. But its colouring baths and liquid crystal compositions, unique properties also make it a keystone inter- We think that's quite a lot. So, why not ask mediate for the synthesis of heterocyclic systems, for your copy of the LONZA brochures on this pharmaceuticals, pesticides, fungicides, dyestuffs, versatile intermediate?

LONZA· Intermediates for specialists. LONZA Inc., 22-10 Route 208, Fair Lawn, NJ 07410/USA,

Tel. (201) 794-2400, Telex 130472