74724-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74724-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,2 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74724-98:
(7*7)+(6*4)+(5*7)+(4*2)+(3*4)+(2*9)+(1*8)=154
154 % 10 = 4
So 74724-98-4 is a valid CAS Registry Number.