158399-50-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158399-50-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,3,9 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 158399-50:
(8*1)+(7*5)+(6*8)+(5*3)+(4*9)+(3*9)+(2*5)+(1*0)=179
179 % 10 = 9
So 158399-50-9 is a valid CAS Registry Number.