CAS Registry Number

CAS 12769-16-3 — Oracet blue B

Oracet Blue B is a synthetic organic dye belonging to the azo class, primarily used for coloring textiles, plastics, and cosmetics due to its vibrant blue hue and excellent lightfastness. It is also employed in analytical chemistry as a pH indicator and in biological staining applications. Oracet Blue B has a CAS number of 12769-16-3, with the molecular formula C21H16N2O2 and a molecular weight of 328.36. It is stored at ambient conditions and carries a signal word of "Warning." Molekula supplies Oracet Blue B from research to bulk quantities with full documentation and ISO 9001:2015 traceability.