159996-80-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159996-80-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,9,9 and 6 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 159996-80:
(8*1)+(7*5)+(6*9)+(5*9)+(4*9)+(3*6)+(2*8)+(1*0)=212
212 % 10 = 2
So 159996-80-2 is a valid CAS Registry Number.