T 1411 (OTTO) Tetraethylene glycol, 99% Cas 112-60-7- used for the synthesis of tetraethylene glycol metha acrylate monomer. T 1411 (OTTO) Tetraethylene glycol, 99% Cas 112-60-7 - used as a chemical intermediate and as a solvent in the production of inks and dyes.