PowerSorb™ 571 CAS No. 125304-04-3

2-(2H-Benzotriazol-2-yl)-6-dodecyl-4-methyl phenol, linear and branched

PowerSorb™ 571 is a low volatility liquid ultraviolet light absorber of the
hydroxy phenyl benzotriazole class. It has very good solubility in many
solvents, monomers, and intermediates, and hence can be incorporated in the
process of polymerization.

Technical Data of PowerSorb™ 571 cas 125304 04 3
Synonyms Tinuvin 571, Tinuvin 171.
CAS Number 125304-04-3
EINECS Number 603-051-2
Chemical Structure
Chemical Formula C25H35N3O
Molecular Weight 395
Packing PowerSorb™ 571 is supplied in 30Kg Plastic Drum.
Note All information in the leaflet is based on our present knowledge and
experience. We reserve the right to make any changes according to
technological progress or further developments. Performance of the product
described herein should be verified by testing.

We specifically disclaim any other express or implied warranty of fitness
for a particular purpose or merchantability.

We disclaim liability for any incidental or consequential damages.
Benefits & Applications of PowerSorb™ 571 CAS No. 125304 04 3
PowerSorb™ 571 can be applied in thermoplastic PUR, coating and integral
foams, rigid and plasticized PVC, PVB, PMMA, PVDC, EVOH, EVA, hot cured
unsaturated polyesters and spin finishes for PA, PET, PUR, and PP fibers.

PowerSorb™ 571 is also suitable for latices, waxes, adhesives, styrene homo-
and co-polymers, elastomers and polyolefins.

PowerSorb™ 571 is highly soluble in many solvents, monomers, or intermedi-
ates and easily emulsifiable in water-based adhesives. It can be considered
for use during polymerization as well as for typical applications on PVC
sheets.

Physical Properties of PowerSorb™ 571 CAS No. 125304-04-3
Appearance Yellow liquid
Specific Gravity [20°C] 1.02
Melting Point (°C) -56
Vapor Pressure (25°C, Pa) 1.2E-5
Volatile Loss (%) Max.0.5
Clarity of Solution Clear Solution
Color of Solution (450nm, %) Min.95
Color of Solution (500nm, %) Min.97
Assay (%) Min.98
Solubility of PowerSorb™ 571 CAS No. 125304-04-3
Solubility [20°C] % w/w
Acetone >50
Ethanol 12
n-Hexane >50
Methanol 1
Methylene chloride >50
Toluene >50
Water <0.01


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