1613639-73-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613639-73-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,6,3 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1613639-73:
(9*1)+(8*6)+(7*1)+(6*3)+(5*6)+(4*3)+(3*9)+(2*7)+(1*3)=168
168 % 10 = 8
So 1613639-73-8 is a valid CAS Registry Number.