39159-99-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39159-99-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,1,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 39159-99:
(7*3)+(6*9)+(5*1)+(4*5)+(3*9)+(2*9)+(1*9)=154
154 % 10 = 4
So 39159-99-4 is a valid CAS Registry Number.