697746-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 697746-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,7,4 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 697746-55:
(8*6)+(7*9)+(6*7)+(5*7)+(4*4)+(3*6)+(2*5)+(1*5)=237
237 % 10 = 7
So 697746-55-7 is a valid CAS Registry Number.