1615684-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1615684-93-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,5,6,8 and 4 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1615684-93:
(9*1)+(8*6)+(7*1)+(6*5)+(5*6)+(4*8)+(3*4)+(2*9)+(1*3)=189
189 % 10 = 9
So 1615684-93-9 is a valid CAS Registry Number.