97776-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97776-99-3 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 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 97776-99:
(7*9)+(6*7)+(5*7)+(4*7)+(3*6)+(2*9)+(1*9)=213
213 % 10 = 3
So 97776-99-3 is a valid CAS Registry Number.