121814-15-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121814-15-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,8,1 and 4 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121814-15:
(8*1)+(7*2)+(6*1)+(5*8)+(4*1)+(3*4)+(2*1)+(1*5)=91
91 % 10 = 1
So 121814-15-1 is a valid CAS Registry Number.