201985-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201985-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,9,8 and 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 201985-65:
(8*2)+(7*0)+(6*1)+(5*9)+(4*8)+(3*5)+(2*6)+(1*5)=131
131 % 10 = 1
So 201985-65-1 is a valid CAS Registry Number.