159647-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159647-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,6,4 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 159647-63:
(8*1)+(7*5)+(6*9)+(5*6)+(4*4)+(3*7)+(2*6)+(1*3)=179
179 % 10 = 9
So 159647-63-9 is a valid CAS Registry Number.