851900-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 851900-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,9,0 and 0 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 851900-17:
(8*8)+(7*5)+(6*1)+(5*9)+(4*0)+(3*0)+(2*1)+(1*7)=159
159 % 10 = 9
So 851900-17-9 is a valid CAS Registry Number.