331981-25-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331981-25-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,9,8 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 331981-25:
(8*3)+(7*3)+(6*1)+(5*9)+(4*8)+(3*1)+(2*2)+(1*5)=140
140 % 10 = 0
So 331981-25-0 is a valid CAS Registry Number.