31249-98-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31249-98-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,2,4 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31249-98:
(7*3)+(6*1)+(5*2)+(4*4)+(3*9)+(2*9)+(1*8)=106
106 % 10 = 6
So 31249-98-6 is a valid CAS Registry Number.