75681-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75681-31-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,6,8 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75681-31:
(7*7)+(6*5)+(5*6)+(4*8)+(3*1)+(2*3)+(1*1)=151
151 % 10 = 1
So 75681-31-1 is a valid CAS Registry Number.