31615-75-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31615-75-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,1 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31615-75:
(7*3)+(6*1)+(5*6)+(4*1)+(3*5)+(2*7)+(1*5)=95
95 % 10 = 5
So 31615-75-5 is a valid CAS Registry Number.