697730-43-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 697730-43-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,7,3 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 697730-43:
(8*6)+(7*9)+(6*7)+(5*7)+(4*3)+(3*0)+(2*4)+(1*3)=211
211 % 10 = 1
So 697730-43-1 is a valid CAS Registry Number.