690981-86-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 690981-86-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,0,9,8 and 1 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 690981-86:
(8*6)+(7*9)+(6*0)+(5*9)+(4*8)+(3*1)+(2*8)+(1*6)=213
213 % 10 = 3
So 690981-86-3 is a valid CAS Registry Number.