42842-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42842-13-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,4 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 42842-13:
(7*4)+(6*2)+(5*8)+(4*4)+(3*2)+(2*1)+(1*3)=107
107 % 10 = 7
So 42842-13-7 is a valid CAS Registry Number.