171974-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171974-75-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,9,7 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 171974-75:
(8*1)+(7*7)+(6*1)+(5*9)+(4*7)+(3*4)+(2*7)+(1*5)=167
167 % 10 = 7
So 171974-75-7 is a valid CAS Registry Number.