97993-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97993-50-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,9,9 and 3 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 97993-50:
(7*9)+(6*7)+(5*9)+(4*9)+(3*3)+(2*5)+(1*0)=205
205 % 10 = 5
So 97993-50-5 is a valid CAS Registry Number.