97777-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97777-39-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,7 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97777-39:
(7*9)+(6*7)+(5*7)+(4*7)+(3*7)+(2*3)+(1*9)=204
204 % 10 = 4
So 97777-39-4 is a valid CAS Registry Number.