1000406-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1000406-42-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,0,4,0 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1000406-42:
(9*1)+(8*0)+(7*0)+(6*0)+(5*4)+(4*0)+(3*6)+(2*4)+(1*2)=57
57 % 10 = 7
So 1000406-42-7 is a valid CAS Registry Number.