Dibutyltin monooctyl maleate/CAS 25168-21-2

Dibutyltin monooctyl maleate/CAS 25168-21-2


Name: Dibutyltin monooctyl maleate CAS 25168-21-2

Synonyms: Bis(isooctylmaleate)dibutyltin dibutyltin dibutyltin bis(isooctylmaleate)dibutyltin dibutyltin dibutyltin bis(isooctylmaleate)

English Synonyms: 2-Butenedioicacid (2Z)-, 1,1′-(dibutylstannylene) 4,4′-diisooctyl ester4-O-[dibutyl-[(Z)-4-(6-methylheptoxy)-4-oxobut-2-enoyl] oxystannyl] 1-O-(6-methylheptyl) (Z)-but-2-enedioateDI-n-BUTYLBIS(2-ETHYLHEXYLMALEATE)TIN,

Product code: BT-58C

English name:Di-n-butyltin Di(Monooctyl Maleate)

CAS No.:25168-21-2

Molecular Formula:C32H56O8Sn

Physical and Chemical Properties

Precise molecular weight : 688.30000

Isotopic mass : 688.3

Number of isotopic atoms : 0

Number of hydrogen bond donors : 0

Number of hydrogen bond acceptors : 8

Number of heavy atoms : 41

Number of rotatable bonds : 28

Complexity : 738

Experimental properties:

Density : 1,145 g/cm3

Melting point : -25°C

Boiling point : 618.1°C at 760 mmHg

Flash Point : 123°C

PSA : 105.20000

LogP : 7.74680

Safety Information:

Hazard Category Code: 20/21/22-36/37/38

Safety Description: S26; S36/37/39

Risk terminology : R20/21/22

TSCA : Yes


Yellow oily liquid

This product is a heat stabilizer for polyvinyl chloride products with excellent long-term stability and weather resistance. It can improve the initial coloring, promote gelation

Storage and transportation:

It should be sealed and stored in dry, cool and ventilated warehouse


200KG/drum Storage: it is recommended to store in dry and cool area with proper ventilation. Please fasten the packaging cover as soon as possible after the original packaging to prevent the mixing of other substances such as moisture and other substances that may affect the performance of the product. Store in a cool and dry place, keep the container sealed and avoid contact with oxides. Do not inhale dust and avoid contact with skin and mucous membranes. Smoking, eating and drinking are prohibited in the workplace. After work, shower and change clothes. Store contaminated clothing separately and wash before use. Maintain good hygiene practices.

Company Name:

Newtop Chemical Materials (Shanghai) Co., Ltd.

Sales Manager:




86-152 2121 6908


86-021-5657 7830


Rm. 1104, No. 258, Songxing West Road,
Baoshan District, Shanghai, China (Mainland)


Our Company

Since its establishment, the company has adhered to the service tenet of “integrity-based, customer first”, adhered to customer demand as the focus, market-oriented, adhered to technological innovation, management innovation and service innovation, and constantly implemented lean production, refined management, to provide customers with better products and services! The company has its own factory, research and development base, set up a strict scientific quality management system, and constantly committed to technological innovation, product innovation and management innovation, so as to ensure that our products have a certain competitiveness in the same industry. The factory is located in Jining City, Shandong Province, China, covering an area of 500 acres, and the current production capacity of various types of amines is 5,000 to 10,000 tons per year.

Our Advantages

Strict Quality Management
Our company strictly implements ISO9002 quality management standards and has established a complete quality management system to ensure the long-term stability of product quality.

Efficient Service
Our production is efficient and reliable, so we deliver on time and within delivery deadlines. At the same time, our team is always happy to help customers and strive to solve customer problems in a short time.

Competitive Price
We have long-term services in wholesale Polyurethane catalyst and have established long-term and stable cooperative relationships with many retailers and agents to provide our customers with reasonably priced products.

OEM Available
Our employee team has high R&D capabilities, superb design and development capabilities, skilled manufacturing technology, and rich product application experience, and can also meet OEM business needs.throughout the entire industry chain.