158303-15-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158303-15-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,3,0 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 158303-15:
(8*1)+(7*5)+(6*8)+(5*3)+(4*0)+(3*3)+(2*1)+(1*5)=122
122 % 10 = 2
So 158303-15-2 is a valid CAS Registry Number.