| 摘要 |
<p>Algicidal composition comprising in an algicidally effective amount a diamine of the formula <IMAGE> wherein R1 is hydrogen or up to three substituents such as halogen, alkyl, phenoxy, phenylthio, or halogen substituted alkoxy, R2 is hydrogen or a substituent such as alkyl, phenyl, halogen substituted phenyl or a trifluoromethyl-substituted phenyl group, R3 is an alkylene of 2 to 6 carbon atoms, R4 is hydrogen or alkyl of 1 to 4 carbon atoms, R5 is alkyl of 1 to 6 carbon atoms or R4 and R5 are together tetramethylene or pentamethylene or R2 and R5 are together ethylene and where R1 is other than three halogen atoms.</p> |
