87790-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87790-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,7,9 and 0 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 87790-97:
(7*8)+(6*7)+(5*7)+(4*9)+(3*0)+(2*9)+(1*7)=194
194 % 10 = 4
So 87790-97-4 is a valid CAS Registry Number.