371172-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 371172-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,1,1,7 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 371172-31:
(8*3)+(7*7)+(6*1)+(5*1)+(4*7)+(3*2)+(2*3)+(1*1)=125
125 % 10 = 5
So 371172-31-5 is a valid CAS Registry Number.