211191-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 211191-12-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,1,1,9 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 211191-12:
(8*2)+(7*1)+(6*1)+(5*1)+(4*9)+(3*1)+(2*1)+(1*2)=77
77 % 10 = 7
So 211191-12-7 is a valid CAS Registry Number.