158497-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158497-97-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,4,9 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 158497-97:
(8*1)+(7*5)+(6*8)+(5*4)+(4*9)+(3*7)+(2*9)+(1*7)=193
193 % 10 = 3
So 158497-97-3 is a valid CAS Registry Number.