Silane, [[2-(2-propenyl)-1,4-phenylene]bis(oxy)]bis[trimethyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 138786-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,8 and 6 respectively; the second part has 2 digits, 0 and 3 respectively. Calculate Digit Verification of CAS Registry Number 138786-03: (8*1)+(7*3)+(6*8)+(5*7)+(4*8)+(3*6)+(2*0)+(1*3)=165 165 % 10 = 5 So 138786-03-5 is a valid CAS Registry Number.