Terephthalylidene dicamphor sulfonic acid (Ecamsule Mexoryl SX)

Product name:Terephthalylidene dicamphor sulfonic acid (Ecamsule Mexoryl SX)
CAS:92761-26-7
Molecular Formula:C28H34O8S2
Molecular Weight:562.69
Product description:Ecamsule (USAN, trade name Mexoryl SX, INCI terephthalylidene dicamphor sulfonic acid) is an organic compound which is added to many sunscreens to filter out UVA rays. It is a benzylidene camphor derivative, many of which are known for their excellent photostability.
Although there are a few different UV absorbers with the trade name Mexoryl, only two of them are widely used where approved. Mexoryl SX (water soluble) and Mexoryl XL (INCI Drometrizole trisiloxane, oil soluble). Together they show a synergistic effect in protection. The patents are held by L'Oréal. Sunscreens containing ecamsule are exclusive to L'Oréal and its brands.