106421-42-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 106421-42-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,4,2 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 106421-42:
(8*1)+(7*0)+(6*6)+(5*4)+(4*2)+(3*1)+(2*4)+(1*2)=85
85 % 10 = 5
So 106421-42-5 is a valid CAS Registry Number.