FASCAT 4102/CAS 23850-94-4

2023-11-17by admin

FASCAT 4102/CAS 23850-94-4


Chinese name: FASCAT4102 catalyst

Alias: FASCAT4102 catalyst, monobutyltris(2-ethylhexanoate)tin, CAS 23850-94-4, monobutyltris(2-ethylhexanoate)tin, tris(2-ethylhexanoate)butyltin, butyltin tris(2-ethylhexanoate), tris(2-ethylhexanoate)tin, tris(2-ethylhexanoate)tin, butyltin tris(2-ethylhexanoate)tin, butyltin tris(2-ethylhexanoate)tin

English name: FASCAT 4102, n-Butyltris(2-ethylhexanoate)tin, -Butyltris(2-ethylhexanoate)tin, Butyltin tris(2-ethylhexanoate). Butyltrisethylhexanoatetin, MONOBUTYLTIN TRIS(2-ETHYL HEXANOATE), BUTYLTIN TRIS-2-ETHYLEXANOA, Butyltin tris-2-ethylhexoate, [butyl-bis(2- ethylhexanoyloxy)stannyl] 2-ethylhexanoate, Butyltin tris(2-ethylexanoate), Butyltin tris(2-ethylhexoate), Butyltris((2-ethyl-1-oxohexyl )oxy)stannane, EINECS 245-912-1.

Fascat 4102, Fascat 9201, Stannane,butyltris((2-ethyl-1-oxohexyl)oxy), Butyltintris(2-ethylhexanoate) (6CI), Stannane, utyltris[(2-ethyl-1 -oxohexyl)oxy]- (9CI), Stannane, butyltris[(2-ethylhexanoyl)oxy]- (8CI), Tegokat 220, Fascat 9201, Monobutyltin tris(2-ethylhexanoate)

Physicochemical properties:

CAS 23850-94-4

EC 245-912-1

Molecular formula C28H54O6SN

Monobutyltin triisooctanoate is a light yellow transparent liquid, soluble in most organic solvents, insoluble in water. It is a kind of esterification catalyst with high catalytic activity and low hydrolysis resistance, mainly used in esterification and polycondensation reaction with the reaction temperature of 210~240 “C, and the highest reaction temperature can be up to 250 C. The catalyst is neutral, and has no corrosive effect on the equipment. The catalyst is neutral and has no corrosive effect on the equipment. It does not need to be separated out after the reaction is completed and does not affect the quality of the final product.

Melting point 】-33°C

Density 】1.105 g/mL at 25 °C (lit.)

Refractive index 】n20/D 1.465(lit.)

Flash Point 】>230 °F


The yellow liquid is used to synthesize saturated polyester resins for powder and coil coatings.

Other uses include:

– Aromatic polyester polyols for flexible and rigid PU foam applications.


– Ring opening polymerization for polymer production – for the preparation of plasticizers, including dioctyl phthalate

– For transesterification reactions at 80°C to 150°C

Storage and transportation:

Should be kept sealed and stored in a 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 product performance. 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:



 [email protected]


86-021-5657 7831


86-021-5657 7830


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