CAS Registry Number

CAS 3520-42-1 — Acid Red 52

Acid Red 52 is a synthetic azo dye classified under acid dyes, primarily used for coloring wool, silk, and nylon fibers in the textile industry. It produces vibrant red shades with excellent lightfastness and acid resistance. This chemical has a CAS number of 3520-42-1, with the molecular formula C27H29N2NaO7S2 and a molecular weight of 580.65. It is stored at ambient conditions and carries no signal word for hazard classification. Molekula supplies Acid Red 52 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.