176109-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176109-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,1,0 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 176109-74:
(8*1)+(7*7)+(6*6)+(5*1)+(4*0)+(3*9)+(2*7)+(1*4)=143
143 % 10 = 3
So 176109-74-3 is a valid CAS Registry Number.