173422-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173422-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,4,2 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 173422-40:
(8*1)+(7*7)+(6*3)+(5*4)+(4*2)+(3*2)+(2*4)+(1*0)=117
117 % 10 = 7
So 173422-40-7 is a valid CAS Registry Number.