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Chemical Name：2,2'-(1, 4-phenylene) di4h-3, 1-benzoxazine-4-one
Molecular formula：C22H12N2O4
Molecular weight：368.34
Structural formula：
 
CAS NO：18600-59-4
Content：more than 99%
Melting point：310-315℃
Ash content：less than 0.1%
Volatile matter：less than 0.3%

Chemical Name: 2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-[(hexyl)oxy]-phenol
Molecular Formula C25H27N3O2
Molecular Weight 425.25
CAS NO.: 147315-50-2Applications: Triazine type UV light absorber has very low volatility , but has good compatibility with other additives. As the ultraviolet absorption agent , it is available to acrylate , PVC , polyester and polyethylene high capability polymer etc.
Specification:
Appearance Lightly yellow powder
Assay ≥ 99%
Melting point 148-150°C
Loss on drying ≤ 0.1%
Ash ≤ 0.05%
PSD＞4000um ≤ 1.0%
Transmittance(2%Toluene solution) 450nm≥ 88%, 500nm≥ 98.5%
Solubility :soluble in chloroform, diphenylmethane, methylbenzene, ethyl acetate, slightly soluble in hexyl alcohol, ethanol.
Storage and transportation :
The chemical stability is good. It can be stored and transported according to the general chemical matter regulation.
Packing: 25kg cartons or durm(PE plastic inside)

Chemical name : 2- (2'-Hydroxy-5'-tert-octylphenyl)benzotriazole 
Formula : C20H25N3O
Molecular Weight : 323
CAS NO : 3147-75-9
Specification:
Appearance : white powder
Assay: 99%Min
Melting Range : 103-105 °C
Transmittance:  @440nm≥ 97 %；@500nm≥ 98%
Ash: 0.1%Max
Loss on drying: 0.5%Max
Introduction : UV-329 is a benzotriazole type ultraviolet light absorber (UVA), imparting good light stability for plastics and other organic polymers. UV-329 is an effective light stabilizer for a variety of plastics and other organic substrates.
Solubility At 20 °C (g/100ml solvent)

Chemical name：2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol
Molecular formula：C22H29N3O
Molecular weight：351.5
Structural formula：
 
CAS NO：21615-48-6
Content：≥99%
Melting point：80-83℃
Dry weight loss：≤0.5%
Ash content：≤0.1%
Appearance：White - light yellow powder
Solubility：Dissolved in benzene, toluene, styrene, cyclohexane, methyl methacrylate, ethyl acetate, ketone and other organic solvents.
Transmittance：460nm≥97%; 500nm≥98%
Features and Uses：Uv-328 is an efficient UV absorber with a maximum UV absorption peak of 345nm. Its photostability is similar to that of UV-326 and UV-327. However, it has a good miscibility with resins, low thermal volatilization, and high scrubber resistance. The general dosage is about 1%. It also has excellent light stabilization effect in various coatings.
Packing：20 or 25 kg cardboard drum or carton packing.

Important points about UV absorbers:
UV absorbers are compounds added to materials to protect them from the harmful effects of ultraviolet (UV) radiation. Ultraviolet radiation from the sun can cause serious damage to a variety of materials, including plastics, paints, textiles, and even human skin. The primary function of UV absorbers is to absorb UV rays and dissipate them as low levels of heat, thereby preventing degradation or other harmful effects of UV radiation.

Chemical name: 2-(2'-Hydroxy-3'-tert-5'-methylphenyl)-5-chlorobenzotriazole

CAS NO:  3896-11-5
Introduction:
UV-326 is a benzotriazole type UV absorber. It has a high absorption in the wavelength
of 290~400nm. It is also efficient for the light stabilization of polyvinyl chloride, unsaturated
polyurethane, polystyrene, polycarbonate, coatings and lacquers.

Specification:
.Appearance: slightly yellowish powder
.Melting Point: 137~142℃
.Content (HPLC) : 99% Min.
.Transmittance: 460nm≥97%   500nm≥98%
.Ash: 0.1% Max.
.Loss on drying: 0.5% Max.

- High-purity Oleic Acid for pharmaceutical applications
- Produced in an integrated factory ensuring quality and consistency
- Superior physical and chemical properties
- Reliable supply chain and competitive pricing

Chemical name: poly {[6 - [(4 methyl butyl,1,3,3) amino]] - 1,3,5 - triazine - 2, 4 - double [(,2,6,6, 2 - methyl - piperidine) of amino] - 1, 6 - adipic hold [,2,6,6 (2 - methyl - 4 - piperidine) of amino]}
Molecular formula: [C35H64N8]n
CAS NO. : 70624-18-9

Specification
Appearance: white powder or granules
Volatile content: ≤1. 0%
Ash content: ≤0. 1%
Transmittance: @425 nm: 95Min  ,@500 nm: 97% Min
Application: LS-944 is used in polyolefin plastics (such as PP, PE), olefin copolymers (such as EVA, propylene and rubber mixture, etc.), and in crosslinked polyethylene, it can show its good efficacy. In addition to polyolefin plastics, it can also be used in polyphenylene ether compound (PPE), polyformaldehyde, polyamide, polyurethane, soft and hard PVC and PVC blends, styrene, rubber and adhesive also have a good effect. Ls-944 is compatible with uv absorbers. Ls-944 can be used in systems that require low volatilization and a small amount of migration. It is particularly suitable for the antioxidant effect of ls-944 in thin films and fibers, as well as the long-term thermal stability effect on polymers.
Storage : LS-944 is stable , storage to avoid high temperature and humidity.
Package:  25KG carton with pallet

Chemical name: bis (2,2,6, 6-tetramethyll-4-piperidinyl) sebacate
Molecular formula: C28H52O4N2
Molecular weight: 48
CAS NO. : 52829-07-9
Specification:
Appearance: white or yellowish crystalline powder
Content: ≥ 99%
Volatile content: ≤ 0.5%
Melting point: 81-86 ℃
Ash content: ≤ 0.1%
Transmittance: 425nm≥98%, 500nm≥99%
Application: light stabilizer 770 is suitable for polypropylene, high-density polyethylene, polyurethane, polystyrene, ABS resin, etc. Its light stabilizing effect is better than the commonly used light stabilizing agent at present
Packing: 25kg PE bags or carton packing.

Chemical Name：Poly (4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol-alt-1,4-butanedioic acid)
Formula：H[C15H25O4N]nOCH3 
CAS NO. : 65447-77-0
Molecular Weight：＞2500

Specification:
Appearance：White powder or granules
Melting Range：50-70℃
Volatile Matter：≤0.5% 
Light Transmittance：425nm: ≥97%; 450nm: ≥98%
Ash Content：≤0.1%
Solubility：Soluble in acetone, toluene, xylene, ethyl acetate, ethanol, chloroform ;Slightly soluble in methanol;Insoluble in water.
Features and Application Area：622 is a high molecular HALS with low volatility, migration resistance, high temperature resistance etc, has synergetic effect with antioxidants and UV absorbers. 
HALS 622 is highly effective in PP, PE, EVA, PS, PA, PU, PVC, etc. 
Cautions：Avoid direct sunlight, moisture, high temperature.Testing required before use.

Chinese chemical name: N, N-hexamethylene double (3,5-second tert butyl-4-hydroxyphenylpropanide)
constitutional formula:

CAS NO.：23128-74-7
Molecular weight: 636.97
Molecular formula: C40 H64 N2 O4

Propionate
Molecular formula： C34H50O8
Molecular weight： 586.8
CAS Number ：36443-68-2

Specification
Appearance: whitle crystal
Assay :99.0%Min
Melting Point (℃) :76.0 ~ 79.0
Ash:  0.10%Max
Volatile Loss :0.5%Max
Transmittance: @425nm 95%Min,; @500nm 97%Min