α,ω-Bis-(chlormethyl)-hexadecamethyloctasiloxane is a cyclic organosilicon compound with the chemical formula (CH3)3SiO[(CH3)2SiO]8Si(CH3)2Cl2. α.ω-Bis--hexadekamethyloktasiloxan is characterized by its unique structure, consisting of a cyclic arrangement of eight silicon atoms connected by oxygen atoms, with two terminal silicon atoms each bearing a chloromethyl group. It is widely used in various applications, such as a coupling agent in the production of silicone rubber, a crosslinking agent in the synthesis of polyurethanes, and a reactive intermediate in the preparation of other organosilicon compounds. Due to its high reactivity and potential health and environmental risks, proper handling and safety measures are essential when working with this chemical.
The CAS Registry Mumber 4236-16-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,3 and 6 respectively; the second part has 2 digits, 1 and 6 respectively. Calculate Digit Verification of CAS Registry Number 4236-16: (6*4)+(5*2)+(4*3)+(3*6)+(2*1)+(1*6)=72 72 % 10 = 2 So 4236-16-2 is a valid CAS Registry Number.