856181-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 856181-09-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,6,1,8 and 1 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 856181-09:
(8*8)+(7*5)+(6*6)+(5*1)+(4*8)+(3*1)+(2*0)+(1*9)=184
184 % 10 = 4
So 856181-09-4 is a valid CAS Registry Number.