159496-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159496-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,4,9 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 159496-21:
(8*1)+(7*5)+(6*9)+(5*4)+(4*9)+(3*6)+(2*2)+(1*1)=176
176 % 10 = 6
So 159496-21-6 is a valid CAS Registry Number.