156525-71-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156525-71-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,5,2 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156525-71:
(8*1)+(7*5)+(6*6)+(5*5)+(4*2)+(3*5)+(2*7)+(1*1)=142
142 % 10 = 2
So 156525-71-2 is a valid CAS Registry Number.