159423-92-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 159423-92-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,9,4,2 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 159423-92:
(8*1)+(7*5)+(6*9)+(5*4)+(4*2)+(3*3)+(2*9)+(1*2)=154
154 % 10 = 4
So 159423-92-4 is a valid CAS Registry Number.