916981-55-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916981-55-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,9,8 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 916981-55:
(8*9)+(7*1)+(6*6)+(5*9)+(4*8)+(3*1)+(2*5)+(1*5)=210
210 % 10 = 0
So 916981-55-0 is a valid CAS Registry Number.