855121-58-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 855121-58-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,5,1,2 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 855121-58:
(8*8)+(7*5)+(6*5)+(5*1)+(4*2)+(3*1)+(2*5)+(1*8)=163
163 % 10 = 3
So 855121-58-3 is a valid CAS Registry Number.