78159-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78159-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,5 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78159-87:
(7*7)+(6*8)+(5*1)+(4*5)+(3*9)+(2*8)+(1*7)=172
172 % 10 = 2
So 78159-87-2 is a valid CAS Registry Number.