123971-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123971-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,9,7 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123971-41:
(8*1)+(7*2)+(6*3)+(5*9)+(4*7)+(3*1)+(2*4)+(1*1)=125
125 % 10 = 5
So 123971-41-5 is a valid CAS Registry Number.