N, N-Bis(Carboxymethyl)-L-glutamic acid tetrasodium salt - 47% in water GLDA N,N-BIS(CARBOXYMETHYL)-L-GLUTAMIC ACID TETRASODIUM SALT / GLDA cas 51981-21-6 Molecular Formula: C9H9NO8�·4Na CAS NO.: 51981-21-6 EINECS no: 257-573-7 Appearance: Light yellow viscous liquid / Pale yellow liquid Classification: Ammonium Organic Salt Assay: â?¥47% Chroma :â?¤ 300 Molecular Weight: 351.13g /mol Shelf life: two years Usage: GLDA is a fast-working, strong builder with excellent ecological properties, being readily biodegradable and not labelled as dangerous. This makes GLDA an ideal replacement for ingredients under regulatory pressure, such as phosphates (which are banned in various regions due to water eutrophication), in automatic dishwashing (ADW) and in laundry. GLDA is a drop-in Replacement for NTA in industrial and institutional cleaners.