172740-37-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172740-37-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,7,4 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 172740-37:
(8*1)+(7*7)+(6*2)+(5*7)+(4*4)+(3*0)+(2*3)+(1*7)=133
133 % 10 = 3
So 172740-37-3 is a valid CAS Registry Number.