172256-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172256-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,2,5 and 6 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 172256-36:
(8*1)+(7*7)+(6*2)+(5*2)+(4*5)+(3*6)+(2*3)+(1*6)=129
129 % 10 = 9
So 172256-36-9 is a valid CAS Registry Number.