2,2-Diethyl-4,4,8,8-tetramethyl-6,6-diphenyl-[1,3,5,7,2,4,6,8]tetroxatetrasilocane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 21207-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,0 and 7 respectively; the second part has 2 digits, 4 and 8 respectively. Calculate Digit Verification of CAS Registry Number 21207-48: (7*2)+(6*1)+(5*2)+(4*0)+(3*7)+(2*4)+(1*8)=67 67 % 10 = 7 So 21207-48-7 is a valid CAS Registry Number.