99780-82-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99780-82-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,8 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99780-82:
(7*9)+(6*9)+(5*7)+(4*8)+(3*0)+(2*8)+(1*2)=202
202 % 10 = 2
So 99780-82-2 is a valid CAS Registry Number.