159971-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159971-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,9,7 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 159971-26:
(8*1)+(7*5)+(6*9)+(5*9)+(4*7)+(3*1)+(2*2)+(1*6)=183
183 % 10 = 3
So 159971-26-3 is a valid CAS Registry Number.