2-methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof

US5082599A · kind A · utility

Assignee

• BASF SE

Inventors

• Alfred Oftring · Bad Dürkheim, DE
• Stefan Birnbach · Ludwigshafen, DE
• Richard Baur · Mutterstadt, DE
• Charalampos Gousetis · Ludwigshafen, DE
• Wolfgang Trieselt · Ludwigshafen, DE

Key dates

• Filing date: Mar 16, 1990
• Grant date: Jan 21, 1992
• Expiry date: Mar 16, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/33
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

2-Methyl- and 2-hydroxymethyl-serine-N,N-diacetic acid and derivatives thereof of the general formula I ##STR1## in which X denotes hydrogen, alkali metal or ammonium which may or may not be substituted by C.sub.1 -C.sub.4 -hydroxyalkyl groups and Z denotes hydrogen or hydroxyl. The compounds I serve as complexing agents for heavy metal ions or alkaline earth metal ions and as bleach stabilizers or builders in detergents and cleaning formulations.