104218-12-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104218-12-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,2,1 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 104218-12:
(8*1)+(7*0)+(6*4)+(5*2)+(4*1)+(3*8)+(2*1)+(1*2)=74
74 % 10 = 4
So 104218-12-4 is a valid CAS Registry Number.