200949-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200949-65-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,9,4 and 9 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 200949-65:
(8*2)+(7*0)+(6*0)+(5*9)+(4*4)+(3*9)+(2*6)+(1*5)=121
121 % 10 = 1
So 200949-65-1 is a valid CAS Registry Number.