15994-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15994-87-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,9 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 15994-87:
(7*1)+(6*5)+(5*9)+(4*9)+(3*4)+(2*8)+(1*7)=153
153 % 10 = 3
So 15994-87-3 is a valid CAS Registry Number.