83049-81-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83049-81-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,0,4 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83049-81:
(7*8)+(6*3)+(5*0)+(4*4)+(3*9)+(2*8)+(1*1)=134
134 % 10 = 4
So 83049-81-4 is a valid CAS Registry Number.