31929-05-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31929-05-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,9,2 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31929-05:
(7*3)+(6*1)+(5*9)+(4*2)+(3*9)+(2*0)+(1*5)=112
112 % 10 = 2
So 31929-05-2 is a valid CAS Registry Number.