-
UV ABSORBER UV-384:2
Chemical Name: 3-(2H-Benzotriazolyl)-5-(1,1-di-methylethyl)-4-hydroxy-b enzenepropanoic acid octyl esters CAS NO.:127519-17-9 Molecular Formula：C27H37N3O3 Molecular Weight：451.60 Specification Appearance: Viscous Slightly yellow to yellow liquid Assay: ≥ 95% Volatile: 0.50%max Clarity: clear Garnder:7.00max Light transmittance: 460nm≥95%; 500nm≥97% Application UV-384:2 is a liquid BENZOTRIAZOLE UV absorber specialized for coating systems. UV-384:2 have good thermal stability and environmen... -
UV Absorber UV-329
Chemical Name: 2-(2’-hydroxy-5’-t-octylphenyl)benzotriazole CAS NO.:3147-75-9 Molecular Formula：C20H25N3O Molecular Weight：323 Specification Appearance: White to slightly yellowish crystalline powder or granule Melting point: 103-107°C Clarity of solution (10g/100ml Toluene): Clear Color of solution (10g/100ml Toluene): 440nm 96.0% min (Transmission) 500nm 98.0% min Loss on drying: 0.3% max Assay (by HPLC): 99.0% min Ash: 0.1% max Application UV- 329 is a unique photo stabilizer that is e... -
UV Absorber UV-328
Chemical Name: 2-(2′-Hydroxy-3′,5′-dipentylphenyl)benzotriazole CAS NO.:25973-55-1 Molecular Formula：C22H29N3O Molecular Weight：351.48516 Specification Appearance: white to light yellow powder Content: ≥ 99% Melting point: 80-83°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance :440nm≥96%, 500nm≥97% Application This product is mainly used in polyvinyl chloride, polyurethane, polyester resin and others. Max absorption wave length range is 345nm. Toxicity: low to... -
UV Absorber UV-327
Chemical Name: 2-(3′,5′-di-tert-Butyl-2′-hydroxyphenyl)-5-chloro-2H-benzotriazole CAS NO.:3864-99-1 Molecular Formula：C20H24ClN3O Molecular Weight：357.9 Specification Appearance: light yellow powder Content: ≥ 99% Melting point: 154-158°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance: 440nm ≥ 97%, 500nm ≥ 98% Application This product is suitable in Polyolefine, Polyvinyl chloride, organic glass and others. Max absorption wave length range is 270-400nm. Toxici... -
UV ABSORBER UV-384:2
Chemical Name: 3-(2H-Benzotriazolyl)-5-(1,1-di-methylethyl)-4-hydroxy-b enzenepropanoic acid octyl esters CAS NO.:127519-17-9 Molecular Formula：C27H37N3O3 Molecular Weight：451.60 Specification Appearance: Viscous Slightly yellow to yellow liquid Assay: ≥ 95% Volatile: 0.50%max Clarity: clear Garnder:7.00max Light transmittance: 460nm≥95%; 500nm≥97% Application UV-384:2 is a liquid BENZOTRIAZOLE UV absorber specialized for coating systems. UV-384:2 have good thermal stability and environmen... -
UV Absorber UV-326
Chemical Name: 2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzotriazole CAS NO.:3896-11-5 Molecular Formula：C17H18N3OCl Molecular Weight：315.5 Specification Appearance: light yellow small crystal Content: ≥ 99% Melting point: 137~141°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance: 460nm≥97%; 500nm≥98% Application Max absorption wave length range is 270-380nm. It mainly used to polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, poly (methyl methacr... -
UV Absorber UV-328
Chemical Name: 2-(2′-Hydroxy-3′,5′-dipentylphenyl)benzotriazole CAS NO.:25973-55-1 Molecular Formula：C22H29N3O Molecular Weight：351.48516 Specification Appearance: white to light yellow powder Content: ≥ 99% Melting point: 80-83°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance :440nm≥96%, 500nm≥97% Application This product is mainly used in polyvinyl chloride, polyurethane, polyester resin and others. Max absorption wave length range is 345nm. Toxicity: low to... -
UV Absorber UV-320
Chemical Name: 2-(2H-benzotriazol-2-yl)-4,6-di-tert-butylphenol CAS NO.:3846-71-7 Molecular Formula：C20H25N3O Molecular Weight：323.4 Specification Appearance:light yellow powder Content: ≥ 99% Melting point: 152-154°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance: 440nm≥97%, 500nm≥98 Toxicity: low toxicity,rattus norvegicus oral LD 50 >2g/Kg weight. General dosage: 1. Unsaturated Polyester : 0.2-0.5wt% based on polymer weight 2. PVC: Rigid PVC : 0.2-0.5wt% based on polymer w... -
UV Absorber UV-326
Chemical Name: 2-(3-tert-Butyl-2-hydroxy-5-methylphenyl)-5-chloro-2H-benzotriazole CAS NO.:3896-11-5 Molecular Formula：C17H18N3OCl Molecular Weight：315.5 Specification Appearance: light yellow small crystal Content: ≥ 99% Melting point: 137~141°C Loss on drying: ≤ 0.5% Ash: ≤ 0.1% Light transmittance: 460nm≥97%; 500nm≥98% Application Max absorption wave length range is 270-380nm. It mainly used to polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, poly (methyl methacr... -
UV Absorber UV-234
Chemical Name: 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol; CAS NO.: 70321-86-7 Molecular Formula：C30H29N3O Molecular Weight：448 Specification Appearance :light yellow powder Melting point : 137.0-141.0℃ Ash :≤0.05% Purity:≥99% Light transmittance: 460nm≥97%; 500nm≥98% Application This product is a high molecular weight UV absorber of the hydroxypheny benzotriazole class, showing outstanding light stability to a variety of polymers during its use.It is highly effective ... -
UV Absorber UV-234
Chemical Name: 2-(2H-Benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl)phenol; CAS NO.: 70321-86-7 Molecular Formula：C30H29N3O Molecular Weight：448 Specification Appearance :light yellow powder Melting point : 137.0-141.0℃ Ash :≤0.05% Purity:≥99% Light transmittance: 460nm≥97%; 500nm≥98% Application This product is a high molecular weight UV absorber of the hydroxypheny benzotriazole class, showing outstanding light stability to a variety of polymers during its use.It is highly effective ... -
UV Absorber UV-120
Chemical Name: 2,4-di-tert-butylphenyl 3,5-di-tert-butyl-4-hydroxybenzoate CAS NO.:4221-80-1 Molecular Formula：C29H42O3 Molecular Weight：438.66 Specification Appearance: White crystalline powder Content: ≥ 99% Melting point: 194 ~ 199℃ Loss on drying: ≤ 0.5% Volatile: 0.3%max Ash: ≤ 0.1% Transmittance, % @450nm ：98.0% min. Application Highly efficient UV absorber for PVC, PE, PP, ABS & unsaturated polyesters. Package and Storage 1. 25kg carton 2. Stored in sealed, dry and dark cond...
