17137-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17137-74-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,1,3 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 17137-74:
(7*1)+(6*7)+(5*1)+(4*3)+(3*7)+(2*7)+(1*4)=105
105 % 10 = 5
So 17137-74-5 is a valid CAS Registry Number.