99992-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99992-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,9 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99992-61:
(7*9)+(6*9)+(5*9)+(4*9)+(3*2)+(2*6)+(1*1)=217
217 % 10 = 7
So 99992-61-7 is a valid CAS Registry Number.