97767-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97767-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,6 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 97767-22:
(7*9)+(6*7)+(5*7)+(4*6)+(3*7)+(2*2)+(1*2)=191
191 % 10 = 1
So 97767-22-1 is a valid CAS Registry Number.