1613220-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613220-15-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,2,2 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1613220-15:
(9*1)+(8*6)+(7*1)+(6*3)+(5*2)+(4*2)+(3*0)+(2*1)+(1*5)=107
107 % 10 = 7
So 1613220-15-7 is a valid CAS Registry Number.