1615686-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1615686-83-3 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 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1615686-83:
(9*1)+(8*6)+(7*1)+(6*5)+(5*6)+(4*8)+(3*6)+(2*8)+(1*3)=193
193 % 10 = 3
So 1615686-83-3 is a valid CAS Registry Number.