74315-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74315-34-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,1 and 5 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 74315-34:
(7*7)+(6*4)+(5*3)+(4*1)+(3*5)+(2*3)+(1*4)=117
117 % 10 = 7
So 74315-34-7 is a valid CAS Registry Number.