861541-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861541-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,5,4 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 861541-55:
(8*8)+(7*6)+(6*1)+(5*5)+(4*4)+(3*1)+(2*5)+(1*5)=171
171 % 10 = 1
So 861541-55-1 is a valid CAS Registry Number.