206447-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 206447-74-7 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 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 206447-74:
(8*2)+(7*0)+(6*6)+(5*4)+(4*4)+(3*7)+(2*7)+(1*4)=127
127 % 10 = 7
So 206447-74-7 is a valid CAS Registry Number.