Product name: UV absorber UV-329

Product Name: UV-329

CAS: 3147-75-9

Molecular Formula: C20H25N3O

Molecular Weight: 323.43

EINECS: 221-573-5

Structural formula:

Melting Point: 106-108°C(lit.)

Boiling Point: 471.8±55.0°C(Predicted)

Density: 1.10±0.1g/cm³ (Predicted)

Vapor pressure: 0Paat20°C

Storage condition: 2-8°C

Solubility: Chloroform (Slightly), Methanol (Slightly).

pKa: 8.07±0.45(Predicted).

State: Solid

Color: White to Off-White

Water solubility: 2μg/Lat20°C

LogP: 7.290(est)

Referred quality standards

Appearance: White powder

Contents: ≥99%.

Volatile matter: ≤0.5%.

Melting Point: 101-106℃

Ash: ≤0.05%.

Transmittance: 440nm≥97%; 500nm≥98%

Uses

UV absorber UV-329 is widely used in PE, PVC, PP, PS, PC, polypropylene fiber, ABS resin, epoxy resin, resin fiber and ethylene vinyl acetate, etc., and can be used in packaging materials such as plastic containers and food packaging boxes, providing them with a good light stabilization effect, almost no absorption of visible light, especially suitable for colorless transparent and light-colored products.