Product name: UV absorber -326

Product Name: UV absorber 326

CAS: 3896-11-5

EINECS: 223-445-4

Molecular Formula: C17H18ClN3O

Molecular Weight: 315.8

Structural formula:

Melting Point: 144-147°C(lit.)

Boiling Point: 460.4±55.0°C(Predicted)

Density: 1.26±0.1g/cm³ (Predicted)

Vapor pressure: 0Paat20°C

Storage condition: Sealed in dry,Room Temperature

Solubility: Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)

Acidity coefficient (pKa): 9.31±0.48(Predicted).

State: Solid

Color: Pale Yellow to Light Yellow

Water solubility: 4μg/Lat20°C

LogP: 6.580 (est)

Appearance: Light yellow powder

Physicochemical properties

Light transmittance:

460nm≥93%

500nm≥96%

Volatile matter: ≤0.3%.

Ash: ≤0.05%.

Melting Point: 137-142℃

Weight loss rate °C: 2355%25010%28750%.

Toxicity: Low toxicity, oral LD50>5g/kg body weight in rats

Contents: ≥99%.

Features & Uses

White and yellow powder, stable performance, low toxicity, strong ultraviolet absorption capacity, can be widely used in photosensitive materials such as color film, color film, color photo paper and polymer, outer protective layer and many other fields. Store light stabilizers that avoid sun, high light, humidity, sulfur or halogenated elements. It needs to be stored in a sealed, dry and dark condition.