183959-76-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183959-76-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,5 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 183959-76:
(8*1)+(7*8)+(6*3)+(5*9)+(4*5)+(3*9)+(2*7)+(1*6)=194
194 % 10 = 4
So 183959-76-4 is a valid CAS Registry Number.