12042-08-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12042-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,0,4 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 12042-08:
(7*1)+(6*2)+(5*0)+(4*4)+(3*2)+(2*0)+(1*8)=49
49 % 10 = 9
So 12042-08-9 is a valid CAS Registry Number.