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CAS:57834-33-0
MF:C17H18N2O2
MW:282.34
EINECS:260-976-0
Synonyms:Ethyl 4-[[(methylphenylamino)methylene]amino]benzoate; UvAbsorberUv-1>98.5%; Light Stablizer UV-1; UV Absorbers; Ultraviolet absorber UV-1; UV Stabilizer UV-1; 4-[(N-methylanilino)methylideneamino]benzoic acid
What is UV Stabilizer UV-1 CAS 57834-33-0？
UV Stabilizer UV-1 (CAS 57834-33-0) is a highly effective ultraviolet light absorber used to protect polymers, coatings, and plastics from UV-induced degradation. Also referred to as Light Stabilizer UV-1 or Omnistab UV 1, this compound belongs to the benzophenone derivative family and provides excellent light stability by absorbing harmful UV radiation.
UV Stabilizer UV-1 is of light yellow liquid with molecular formula C17H18N2O2, molecular weight 282.3, moisture ≤1.0%, boiling point of 188 ~ 190℃/13Pa, relative density: 1.127, viscosity (20℃) of about 4752mPa·s, refractive index of 1.64. Solubility: >50 in ethanol, >50 in isopropyl alcohol, >50 in butyl acetate, and zero in water. In terms of PU,UV-1 is better than other anti-ultraviolet agents, and is used in foaming materials, coatings, leather and plates.
It is particularly suitable for transparent and light-colored systems, where long-term protection against discoloration, brittleness, and loss of mechanical strength is critical. As a China UV Absorber UV-1 supplier, we provide consistent quality and competitive pricing for global customers.
Specification
| Item | Specification |
| Acidity coefficient (pKa) | 6.94±0.50(Predicted) |
| Boiling point | 188 °C |
| Density | 1.05±0.1 g/cm3(Predicted) |
| Vapor pressure | 78Pa at 25℃ |
| Water solubility | 34.7mg/L at 20℃ |
| LogP | 4.46 at 25℃ |
Application
UV Stabilizer UV-1 is widely used in different industries:
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Plastics & Polymers: Effective in PVC, PET, PS, PC, and engineering plastics to enhance weather resistance.
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Coatings: Applied in automotive coatings, wood finishes, and industrial coatings to prevent fading and surface degradation.
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Adhesives & Sealants: Improves durability and resistance to sunlight exposure.
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Fibers & Films: Extends service life of synthetic fibers, packaging films, and agricultural films.
Packaging
Usually packed in 200kg/drum, and also can be do customized package.
