823813-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 823813-99-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,3,8,1 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 823813-99:
(8*8)+(7*2)+(6*3)+(5*8)+(4*1)+(3*3)+(2*9)+(1*9)=176
176 % 10 = 6
So 823813-99-6 is a valid CAS Registry Number.