NNK is not insoluble in water.
Richter
Elmar
E
D002273:Carcinogens / Q000032:analysis / Q000737:chemistry*; D009602:Nitrosamines / Q000032:analysis / Q000737:chemistry*; D012995:Solubility; D014867:Water / Q000032:analysis / Q000737:chemistry*
D002273:Carcinogens; D009602:Nitrosamines; D014867:Water; C016583:4-(N-methyl-N-nitrosamino)-1-(3-pyridyl)-1-butanone