| 释义 |
schradan|ˈʃrɑːdən|
Also Schradan.
[f. the name of Gerhard Schrader (b. 1903), German chemist, who first prepared it + -an.]
A viscous liquid organophosphorus compound, bis(bisdimethylamino)phosphonous anhydride, ((CH3)2N)2PO.O.PO(N(CH3)2)2, used as a systemic insecticide in the form of an aqueous solution.
1951Jrnl. Sci. Food & Agric. II. 310 The systemic insecticide Schradan is slowly broken down in the plant by enzymic reaction. 1953New Biol. XIV. 108 Schradan..renders plants highly toxic to sucking insects but has no appreciable effect on bees. 1964A. H. Burgess Hops i. 17 Systemic insecticides, such as schradan, which was first introduced for commercial use on hops in 1949, have revolutionized the control of pests on hops. 1977M. B. Green et al. Chemicals for Crop Protection & Pest Control vii. 54 The only other compound with..any commercial utility was schradan, but this..is not now used because of its high mammalian toxicity. |