74712-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74712-68-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,1 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74712-68:
(7*7)+(6*4)+(5*7)+(4*1)+(3*2)+(2*6)+(1*8)=138
138 % 10 = 8
So 74712-68-8 is a valid CAS Registry Number.