19996-59-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19996-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,9 and 6 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19996-59:
(7*1)+(6*9)+(5*9)+(4*9)+(3*6)+(2*5)+(1*9)=179
179 % 10 = 9
So 19996-59-9 is a valid CAS Registry Number.