256412-87-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256412-87-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,1 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 256412-87:
(8*2)+(7*5)+(6*6)+(5*4)+(4*1)+(3*2)+(2*8)+(1*7)=140
140 % 10 = 0
So 256412-87-0 is a valid CAS Registry Number.