D 1687 (OTTO) Diethylene glycol, GR 99%+ Cas 111-46-6 - used for electro deposition of cadmium sulfide (CdSe) films. D 1687 (OTTO) Diethylene glycol, GR 99%+ Cas 111-46-6 - used to compose the fluoride ion electrolytes, for use in the preparation of self-organized titania nanotube arrays.