UV absorber and light – protective substance for technical application e.g. acrylic- resin, acrylic-varnish, vinyl-varnish, adhesive, paint, fluorescent pigments, PUR, CTA, CDA, PP, PVC, PMMA required concentration 0,5 – 1.5 wt%, compatible with HALS.
Formula: C15 H18 O5
Molecular-weight: 278, 30 g/ mol
Chem. name: (E)-Ethyl 2-(3-ethoxy-4-hydroxybenzylidene)-3- oxobutanoate
CAS: 187245-35-8
Appearance: Light yellowish, crystalline
Melting point: 132°C – 133°C
Identity: NMR / ESI-MS
Ethanol: 0,5 %
Ethyl acetate: 1,0 %
Acetone: 6,0 %
Dichlormethan/Methanol (9:1): 6,0 %
Butyl glycol: 0,5 %
Gasoline: < 0.01
Water: < 0.01
(1 %, Ethanol): Clear, colourless