121501-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121501-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,0 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 121501-23:
(8*1)+(7*2)+(6*1)+(5*5)+(4*0)+(3*1)+(2*2)+(1*3)=63
63 % 10 = 3
So 121501-23-3 is a valid CAS Registry Number.