171358-72-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171358-72-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,3,5 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 171358-72:
(8*1)+(7*7)+(6*1)+(5*3)+(4*5)+(3*8)+(2*7)+(1*2)=138
138 % 10 = 8
So 171358-72-8 is a valid CAS Registry Number.