Basic Info:

  • Chemical Synonym(s): Sebacic Acid Bis(2,2,6,6-tetramethyl-4-piperidyl) Ester; Decanedioic Acid Bis(2,2,6,6-tetramethyl-4-piperidyl) Ester; bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate; Bis(2,2,6,6-tetraMethyl-4-piperidyl) Sebacate; Light Stabilizer Tinuvin 770;
  • Read More
  • CAS Number: 52829-07-9
  • Chemical Formula:



Boiling Point
499.8ºC at 760mmHg
Melting Point
Flash Point
acetone: 19 % (w/w) at 20 °C
Appearance & Physical State
Slightly yellowish crystalline granules
Quote Now

We help you source SUNLIGHT® 770 in China

Our Advantages:

China currently plays a very important role in the world market for plastic additives, with 168, 1010, DSTDP, DLTDP, 977 and 365 being the most produced products in the world.

The price of plastic additives varies significantly with oil, while the cost correlation between antioxidants and palm oil is high. Since 2020, the number of black swan events in the world has increased, resulting in dramatic changes in raw material prices.

Companies such as UPP, SONGWON, PMC, LG, etc. have been alerted by us in time and have avoided many losses.

We have a 20+ year track record of working with suppliers in China and rating reports on them, and we keep our suppliers updated with the latest news so our customers can get the latest supplier reports. We know the market well and have early warning notifications on upstream raw material prices to help you build a stable supply chain.

When selecting suppliers, our procurement specialists will audit the qualification of suppliers, conduct thorough investigations such as field visits and sample testing, and make ratings to ensure the authenticity and legality of supplier information.

We have a long-term stable cooperation with GLP laboratories, encounter customer test results and supplier test results do not match the situation, we will commission a third party to test to ensure the accuracy, authenticity and reliability of the experimental results. In this way, we can effectively control the product quality problems.

We have a long-term cooperative warehouse and can follow up packaging and labeling according to safety regulations and customer requirements. In order to effectively prevent damage to the goods in transit, we have prepared various reinforcement measures and packaging solutions.

We have a number of international freight companies with whom we have long-standing cooperation, and we can choose several route options according to the customer's requirements. For more difficult or urgent orders, we will prepare several alternative solutions to ensure safe and timely delivery.


We promise to immediately and unconditionally exchange or return the goods if they have quality problems. Our employees who deal with after-sales issues have many years of international work experience and are familiar with various processes in multinational work, so they can communicate and deal with after-sales issues without any obstacles.

Request a quote for SUNLIGHT® 770


SUNLIGHT® 770 is also called bis(2,2',6,6'-tetramethylpiperidinyl) sebacate. It has the appearance of a white crystalline powder.

It is soluble in organic solvents such as ethanol, ethyl acetate and benzene, and insoluble in water. It has high volatility and poor migration and extraction resistance.

It can be made from acetone by passing ammonia gas to 2,2',4,4',6-pentamethyl-2,3,4,5 tetrahydropyrimidine, with ammonium chloride as catalyst, 2,2',4,4',6-pentamethyl-2,3,4,5 tetrahydropyrimidine in the presence of acetone In the presence of skeletal nickel and other catalysts, 2,2',6,6'-tetramethyl-4-oxopiperidine was reacted to form 2,2',6,6'-tetramethyl-4-oxopiperidine for liquid phase addition to produce 2,2 ',6,6'-tetramethyl-4-hydroxypiperidine.

Then dimethyl sebacate was produced by esterification of sebacic acid and methanol in the presence of sulfuric acid. Finally, 2,2',6,6'-tetramethyl-4-hydroxypiperidine was reacted with dimethyl sebacate to produce the finished product.


SUNLIGHT® 770 is a light stabilizer used for cellulose ester plasticizers and epoxy-based resins. As a colorless liquid, it has good solubility in coatings and plastics.

It is very effective in preventing discoloration such as yellowing or fading of coatings and plastics. It is used in the manufacturing of photographic film. It is also blended with plastic to give it desired properties.

It has some color properties that make the product unique and valuable to the end-users. Applications of it are not limited to the photographic industry. It can be used in the preparation of PVC surface coatings.

Application of it can be used in the preparation of PVC surface coatings. Application is also possible in the preparation of polymer resins, which are used in the construction industry.

Related Products:


CAS Number: 127519-17-9


CAS Number: 153519-44-9


CAS Number: 103597-45-1


CAS Number: 3147-75-9


CAS Number: 25973-55-1


CAS Number: 70321-86-7


CAS Number: 70624-18-9 /52829-07-9


CAS Number: 63843-89-0 


CAS Number: 129757-67-1


CAS Number: 104810-48-2/104810-47-1/25322-68-3
1 2 3 5