1042642-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1042642-03-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,2,6,4 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1042642-03:
(9*1)+(8*0)+(7*4)+(6*2)+(5*6)+(4*4)+(3*2)+(2*0)+(1*3)=104
104 % 10 = 4
So 1042642-03-4 is a valid CAS Registry Number.