856831-52-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856831-52-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,8,3 and 1 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 856831-52:
(8*8)+(7*5)+(6*6)+(5*8)+(4*3)+(3*1)+(2*5)+(1*2)=202
202 % 10 = 2
So 856831-52-2 is a valid CAS Registry Number.