974-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 974-84-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,7 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 974-84:
(5*9)+(4*7)+(3*4)+(2*8)+(1*4)=105
105 % 10 = 5
So 974-84-5 is a valid CAS Registry Number.