858016-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 858016-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,8,0,1 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 858016-71:
(8*8)+(7*5)+(6*8)+(5*0)+(4*1)+(3*6)+(2*7)+(1*1)=184
184 % 10 = 4
So 858016-71-4 is a valid CAS Registry Number.