39997-47-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39997-47-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,9 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 39997-47:
(7*3)+(6*9)+(5*9)+(4*9)+(3*7)+(2*4)+(1*7)=192
192 % 10 = 2
So 39997-47-2 is a valid CAS Registry Number.