216987-13-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216987-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,9,8 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 216987-13:
(8*2)+(7*1)+(6*6)+(5*9)+(4*8)+(3*7)+(2*1)+(1*3)=162
162 % 10 = 2
So 216987-13-2 is a valid CAS Registry Number.