79531-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79531-98-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,5,3 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 79531-98:
(7*7)+(6*9)+(5*5)+(4*3)+(3*1)+(2*9)+(1*8)=169
169 % 10 = 9
So 79531-98-9 is a valid CAS Registry Number.