Ultraviolet absorbent UV-234 CAS 70321-86-7 is an organic compound with a molecular weight of 846.7645.

Chinese name: UV Absorber UV-234

Foreign name: Ultraviolet ambient UV-234

Nicknames: 2- (2 ‘- hydroxy-3′, 5 ‘bis (a, a-dimethylbenzyl) phenyl) benzotriazole, 2- (2-hydroxy-3′, 5 ‘- dikulphenyl) benzotriazole, 2- (2-hydroxy-3′, 5 ‘- dikulphenyl) benzotriazole, 2- (2′ – hydroxy-3 ‘, 5′ – dikulphenyl) benzotriazole

CAS: 70321-86-7

Molecular weight: 846.7645

EINECS: 274-570-6

Molecular formula: C30H29N3O

Physical and chemical properties

Appearance: Light yellow powder

Content: ≥ 99% (HPLC)

Melting point: 137-141 ℃

Transmittance: 460nm ≥ 98% 500nm ≥ 99%

Volatile matter: ≤ 0.3%

Melting point: 139-143 ℃

Solubility: insoluble,<0.04 ppm at 20 ℃

Purpose: As an excellent light stabilizer, used in PE, PP, polyester, and coatings

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