E 1489 (OTTO) Ethylenediaminetetraacetic acid dipotassium salt, 99%+ Cas 25102-12-9 - used to eliminate inhibition of enzyme catalyzed reactions due to traces of heavy metals. E 1489 (OTTO) Ethylenediaminetetraacetic acid dipotassium salt, 99%+ Cas 25102-12-9 - used to study chelators, biochemicals and reagents. E 1489 (OTTO) Ethylenediaminetetraacetic acid dipotassium salt, 99%+ Cas 25102-12-9 - used to study the three dimensional hierarchy structures from self-assembly of quantum dots.