861609-86-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861609-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,6,0 and 9 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 861609-86:
(8*8)+(7*6)+(6*1)+(5*6)+(4*0)+(3*9)+(2*8)+(1*6)=191
191 % 10 = 1
So 861609-86-1 is a valid CAS Registry Number.