Toxicity of 2,4-diamino-6-alkyl-s-triazines

Can you give me some information about toxicity of 
2,4-diamino-6-alkyl-s-triazines or at least indicate some literature
about it?

Many thanks! With best regards

José M. Santos

Ciba Spezialitäten Chemie 
Coating Effects (CE 703)
R-1049 3.58
P.O. Box 4002
Basel - Switzerland
Tfn:00416163622667 (Intern: 622667)
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mail to : [EMAIL PROTECTED]