16842-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16842-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,8,4 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 16842-59:
(7*1)+(6*6)+(5*8)+(4*4)+(3*2)+(2*5)+(1*9)=124
124 % 10 = 4
So 16842-59-4 is a valid CAS Registry Number.