12042-55-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12042-55-6 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, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12042-55:
(7*1)+(6*2)+(5*0)+(4*4)+(3*2)+(2*5)+(1*5)=56
56 % 10 = 6
So 12042-55-6 is a valid CAS Registry Number.