31098-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31098-36-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,0,9 and 8 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 31098-36:
(7*3)+(6*1)+(5*0)+(4*9)+(3*8)+(2*3)+(1*6)=99
99 % 10 = 9
So 31098-36-9 is a valid CAS Registry Number.