156547-71-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156547-71-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,5,4 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 156547-71:
(8*1)+(7*5)+(6*6)+(5*5)+(4*4)+(3*7)+(2*7)+(1*1)=156
156 % 10 = 6
So 156547-71-6 is a valid CAS Registry Number.