158953-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158953-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,9,5 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 158953-40:
(8*1)+(7*5)+(6*8)+(5*9)+(4*5)+(3*3)+(2*4)+(1*0)=173
173 % 10 = 3
So 158953-40-3 is a valid CAS Registry Number.