CG-202 (CAS No. 5089-70-3)

Chemical Name: 3-Chloropropyltriethoxysilane
Molecular Formula: C9H21ClO3Si
Structural Formula :
Molecular Weight: 240.8
CAS No. : 5089-70-3 (TEC)

Physical Properties of 3-Chloropropyltriethoxysilane:

Physical Form :Transparent liquid
Color:Colorless or light yellow
Specific Gravity at 25/25°:1.000
Boiling Point, °C : 220
Refractive Index, nD 25°C : 1.42
Flash Point, Pensky-Martens Closed Cup (1), °C : 37.2


3-chloropropyltriethoxysilane (CAS NO.5089-70-3) named TEC abroad is an important synthetic intermediate of silane coupling agent. It can be used as a kind of rubber processing aid to couple inorganic filters in various halogenated rubbers to improve physical and mechanical properties, such as neoprene, chlorobutyl rubber, chlorosulfonated polyethylene, etc. This product can also be used to compose organosilicon compound with quaternary ammonium salt cations which function as anti-mildew agent and deodorant. It has surfactivity and the functions of sterilizing, deodorizing and antistatic.

Packaging and Storage:

3-chloropropyltriethoxysilane is packed in IBC tank or ISO tank.
It is sealed and stored in cool and well ventilated place away from fire and water.


The information provided herein was believed by Jiangxi Chenguang New Materials Co., Ltd. to be accurate at the time of preparation or prepared from sources believed to be reliable, but it is the responsibility of the user to investigate and understand other pertinent sources of information, to comply with all laws and procedures applicable to the safe handling and use of 3-chloropropyltriethoxysilane, and to determine the suitability of the product for user's intended application or use. All products supplied by Chenguang are subject to Chenguang's standard terms and conditions of sale. CHENGUANG MAKES NO WARRANTY, EXPRESS OR IMPLIED, CONCERNING THE PRODUCT OR THE MERCHANTABILITY OR FITNESS THEREOF FOR ANY PURPOSE OR CONCERNING THE ACCURACY OF ANY INFORMATION PROVIDED BY CHENGUANG, except that the product shall conform to Chenguang’s specifications. Nothing contained herein constitutes an offer for the sale of any product.

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