689758-47-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 689758-47-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,7,5 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 689758-47:
(8*6)+(7*8)+(6*9)+(5*7)+(4*5)+(3*8)+(2*4)+(1*7)=252
252 % 10 = 2
So 689758-47-2 is a valid CAS Registry Number.