31756-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31756-63-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,7,5 and 6 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31756-63:
(7*3)+(6*1)+(5*7)+(4*5)+(3*6)+(2*6)+(1*3)=115
115 % 10 = 5
So 31756-63-5 is a valid CAS Registry Number.