849-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 849-42-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 849-42:
(5*8)+(4*4)+(3*9)+(2*4)+(1*2)=93
93 % 10 = 3
So 849-42-3 is a valid CAS Registry Number.