83842-43-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83842-43-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,4 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83842-43:
(7*8)+(6*3)+(5*8)+(4*4)+(3*2)+(2*4)+(1*3)=147
147 % 10 = 7
So 83842-43-7 is a valid CAS Registry Number.