BLS 531


BLS 531 (1843-05-6) is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability for plastics and other organic polymers.  Due to its highly effective broad UV absorption properties and excellent polymer compatibility, BLS 531 offers maximum polymer protection and low color contribution, retards yellowing and loss of physical properties


Chemical Name:                     2-Hydroxy-4-n-Octoxybenzophenone

CAS Number:                         1843-05-6

Chemical Structure:

BLS 531


Typical Properties         

Product Form:                         Solid

Melting Point:                          46.5-49oC

Molecular Weight:                   326 g/mol

Product Details:  Please view our  BLS 531 PDF