857209-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 857209-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,2,0 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 857209-61:
(8*8)+(7*5)+(6*7)+(5*2)+(4*0)+(3*9)+(2*6)+(1*1)=191
191 % 10 = 1
So 857209-61-1 is a valid CAS Registry Number.