31534-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31534-98-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,3 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31534-98:
(7*3)+(6*1)+(5*5)+(4*3)+(3*4)+(2*9)+(1*8)=102
102 % 10 = 2
So 31534-98-2 is a valid CAS Registry Number.