121650-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121650-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,5 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121650-81:
(8*1)+(7*2)+(6*1)+(5*6)+(4*5)+(3*0)+(2*8)+(1*1)=95
95 % 10 = 5
So 121650-81-5 is a valid CAS Registry Number.