59997-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 59997-44-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,9,9 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 59997-44:
(7*5)+(6*9)+(5*9)+(4*9)+(3*7)+(2*4)+(1*4)=203
203 % 10 = 3
So 59997-44-3 is a valid CAS Registry Number.