3813-99-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3813-99-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,1 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3813-99:
(6*3)+(5*8)+(4*1)+(3*3)+(2*9)+(1*9)=98
98 % 10 = 8
So 3813-99-8 is a valid CAS Registry Number.