757997-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 757997-84-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,7,9,9 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 757997-84:
(8*7)+(7*5)+(6*7)+(5*9)+(4*9)+(3*7)+(2*8)+(1*4)=255
255 % 10 = 5
So 757997-84-5 is a valid CAS Registry Number.