1615699-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1615699-80-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,5,6,9 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1615699-80:
(9*1)+(8*6)+(7*1)+(6*5)+(5*6)+(4*9)+(3*9)+(2*8)+(1*0)=203
203 % 10 = 3
So 1615699-80-3 is a valid CAS Registry Number.