691884-00-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 691884-00-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,1,8,8 and 4 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 691884-00:
(8*6)+(7*9)+(6*1)+(5*8)+(4*8)+(3*4)+(2*0)+(1*0)=201
201 % 10 = 1
So 691884-00-1 is a valid CAS Registry Number.