874658-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 874658-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,4,6,5 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 874658-20:
(8*8)+(7*7)+(6*4)+(5*6)+(4*5)+(3*8)+(2*2)+(1*0)=215
215 % 10 = 5
So 874658-20-5 is a valid CAS Registry Number.