207791-84-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207791-84-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,7,9 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 207791-84:
(8*2)+(7*0)+(6*7)+(5*7)+(4*9)+(3*1)+(2*8)+(1*4)=152
152 % 10 = 2
So 207791-84-2 is a valid CAS Registry Number.