AB-NTA free acid, N-(5-Amino-1-carboxypentyl)iminodiacetic acid.
Aminobutyl-NTA (AB-NTA) free acid replaces AB-NTA (disodium salt form; former Product Code: DJA296-10). The new free acid form is less hygroscopic than the disodium salt form. Dissolving the new acid form in a buffer involves the same procedure as dissolving disodium salt in a buffer. The new acid form can also be dissolved in water.