31340-34-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31340-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,3,4 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31340-34:
(7*3)+(6*1)+(5*3)+(4*4)+(3*0)+(2*3)+(1*4)=68
68 % 10 = 8
So 31340-34-8 is a valid CAS Registry Number.