838843-42-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 838843-42-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,3,8,8,4 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 838843-42:
(8*8)+(7*3)+(6*8)+(5*8)+(4*4)+(3*3)+(2*4)+(1*2)=208
208 % 10 = 8
So 838843-42-8 is a valid CAS Registry Number.