200959-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200959-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,9,5 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 200959-67:
(8*2)+(7*0)+(6*0)+(5*9)+(4*5)+(3*9)+(2*6)+(1*7)=127
127 % 10 = 7
So 200959-67-7 is a valid CAS Registry Number.