1,2,3,3a,4,5,6,6a-Octamethyl-2,5-diphenyl-octahydro-1,3,4,6-tetraaza-2,3a,5,6a-tetrasila-pentalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 72191-01-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,9 and 1 respectively; the second part has 2 digits, 0 and 1 respectively. Calculate Digit Verification of CAS Registry Number 72191-01: (7*7)+(6*2)+(5*1)+(4*9)+(3*1)+(2*0)+(1*1)=106 106 % 10 = 6 So 72191-01-6 is a valid CAS Registry Number.