TINUVIN® 171
TINUVIN 171 is a liquid UV light absorber of the hydroxyphenyl-benzotriazole class. Since its absorption spectrum does not tail significantly into the visible region, it is an ideal UV absorber for those systems where initial yellowing must be kept to a minimum.
Product highlights
- Liquid hydroxyphenyl-benzotriazole UVA designed for use in photographic applications
- Low tendency to crystalize in formulations allows higher loadings
- High extinction in the UVA region