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UV Absorber 326 CAS 3896-11-5

Molecular Formula: C17H18ClN3O

Formula Weight: 315.8

ZSpharmac: UV Absorber 326 Supplier

Product Name: UV Absorber 326
CAS No: 3896-11-5
Purity: 99%

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Basic Info

Product Name:UV Absorber 326
Other Names:Ultraviolet Absorbent UV-326
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Cosmetic Raw Materials
Appearance:Pale Yellow to Light Yellow Solid
EINECS No.:223-445-4
Storage:Room Temperature
Provide:UV Absorber 326 MSDS;
UV Absorber 326 COA

What is UV Absorber 326?

Ultraviolet absorber explains a prep work that can stop a huge quantity of ultraviolet rays from going through. The ultraviolet absorber needs to have the listed here conditions: wonderful thermal security, no change due to warm also throughout handling, minimized thermal volatility; strong absorption of ultraviolet rays (especially the wavelength of 290-400nm) wonderful chemical safety and security, no negative response with the product elements in the item; wonderful miscibility, can be consistently dispersed in the product, no expanding, no leak; the photochemical property or business residential properties of the absorber itself Great stability, no decay, no staining; anemic, safe, odorless; washable; affordable as well as easy to acquire.UV absorbers can be split right into the sticking to groups according to their chemical structures: salicylates, benzophenones, benzotriazoles, changed acrylonitriles, triazines in addition to others. Fabrics with UV absorbers can achieve superb UV blocking outcomes. It can minimize fading in addition to enhance the light fastness of polyester disperse dyes. Ultraviolet absorber UV-326 is amongst them.

UV Absorber 326 Property

Melting point 144-147 °C(lit.)
Boiling point 460.4±55.0 °C(Predicted)
density 1.26±0.1 g/cm3(Predicted)
vapor pressure 0Pa at 20℃
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form Solid
color Pale Yellow to Light Yellow
Water Solubility 4μg/L at 20℃


Application of UV Absorber 326

A high-strength environment-friendly polyvinyl chloride pipe, its components are proportioned by mass percentage: 45% polyvinyl chloride, 12% glass fiber, 10% wollastonite, bis(2-ethylhexyl phthalate) ) 9%, methacrylate-acrylate copolymer 8%, melamine cyanurate 9%, antistatic agent HKD-912 2%, UV Absorber 326 2%, calcium zinc stabilizer 1.5%, PE wax 1%, antistatic agent Oxygen agent 1010 0.5%. The glass fiber is an alkali-free glass fiber whose surface is treated with a silane coupling agent and has a diameter of 4-18 μm, a length of 3-6 mm, and an aspect ratio of 7-9. The wollastonite is The surface is modified by silane coupling agent, and the fibrous wollastonite has a diameter of 6-25 μm, a length of 10-500 μm, and an aspect ratio of 3-100.

Preparation method: (1), weigh each component according to the weight ratio; (2), add polyvinyl chloride, bis(2-ethylhexyl phthalate) and calcium zinc stabilizer to the barrel and keep the temperature at 80 In the mixer at ℃~90℃, stir according to the rotation speed of 50~80r//min for 20~30min, then add other components, and continue stirring for 20~40min, after mixing evenly, discharge the material; (3), the step ( 2) Add the obtained mixture into a twin-screw extruder for kneading, and then extrude it into a pipe to obtain the above-mentioned high-strength and environment-friendly polyvinyl chloride pipe.

Preparation of UV Absorber 326

Diazotization response: Take into consideration 6g of 98wt% H2SO4, 50ml of water and also 0.03 mol of p-chloro-o-nitroaniline right into the response kettle. When cooling down to 5 ° C, slowly include 15g of 20wt% NaNO2 service dropwise, and proceed stirring for 1h till the action is completed.Add urea to break down residual nitrous acid, as well as filter to get rid of residue.

Combining reaction: Evaluate 0.03 mol 2-tert-butyl-p-cresol, 50mL water, and also 0.1 g salt dodecylbenzenesulfonate into the response kettle, stir to create a consistent white solution. Adjust the pH to 7-9, as well as add the above-mentioned diazonium salt service dropwise within 2 hours under this weak alkaline condition. After the response, filter, clean, completely dry and weigh.

Glucose reduction response: Evaluate 0.015 mol of the product obtained from the diazo coupling reaction, 10g of NaOH solution

(20wt%) was included in the response kettle, and also when the temperature level was 50 ° C, 100ml of 30wt% sugar service was slowly included dropwise, and also the response was proceeded for 1h. After cooling, it was filtered as well as drained pipes to obtain the nitrogen oxide intermediate.

Decrease response of zinc powder: add 17mL of chlorobenzene and 42g of 14wt% H2SO4 to the nitrogen oxide, and also warmth to 90 ° C. Add 1.1 g of zinc powder in sets within 2 hrs, include triggered carbon after the reaction is full, and filter while warm after stirring for 0.5 hours. The analysis results showed that the return of the item was 90.9%, and also the pureness was 99.3%.

The Mechanism of Action of UV Absorber 326

Polymer products or plastic products will certainly transform color, end up being fragile, fracture or powder under long-term sunlight exposure. For a lot of plastics, the sensitive wavelength that is more than likely to trigger damage is in between 290-400nm, which is the ultraviolet region. The energy of ultraviolet light damages the chemical bonds of polymers, setting off photooxidation or oxidative photodegradation, resulting in physical and mechanical buildings. At the same time, the formation of hydroxyl-containing decomposition items as well as chromophores deepens the color adjustment.

UV Absorber 326 can absorb and also protect ultraviolet rays to transfer, inject, and also absorb high-energy ultraviolet rays for power conversion, so as to secure polymer products from ultraviolet rays and also boost the life span of polymer products.

As displayed in the number, the reliable absorption band of UV Absorber 326 is in between 312nm as well as 353nm, and the application can be chosen according to this data.

About Products:
If you need UV Absorber 326 as a cosmetic raw material, please contact our service staff directly, we will provide you with high-quality products at the best price.
As an experienced UV Absorber 326 manufacturer and supplier, ZSpharmac will provide UV Absorber 326 raw materials to customers all over the world for a long time.
Over the years, the company has been adhering to the spirit of “integrity management, strict quality control, customer first”, and has won unanimous praise from domestic and foreign customers.

Company Profile and Corporate Culture

Company Profile:

ZhiShang Chemical is owned by ZhiShang Group is a professional new-type chemicals enterprise combined into research and development, production and sales .

The company’s competitive product is pharmaceutical raw materials and intermediates (especially carbohydrate derivatives Series), In recent years, the company has made a major breakthrough in food and feed additives, plant extraction, industrial chemicals industry .

The company insists on the spirit of “sincere management, strict quality control, customer as god” , get consistent high praise from customers at home and abroad.

Corporate Culture:

Help China Chemicals to benefit the happiness of human life
Become the most trusted chemical supplier in the world
Striver – oriented, enrich employees, customer first, deep service, seek development
Be prepared for danger in times of peace, forge ahead actively, unity and cooperation, and be brave to fight

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Cosmetic raw materials
  • Products/Service:Cosmetic raw materials (flavors and fragrances,antioxidant products, moisturizing and hydrating, whitening agents, cosmetic additives)
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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