206446-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206446-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,4,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 206446-40:
(8*2)+(7*0)+(6*6)+(5*4)+(4*4)+(3*6)+(2*4)+(1*0)=114
114 % 10 = 4
So 206446-40-4 is a valid CAS Registry Number.