121949-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121949-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,4 and 9 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121949-41:
(8*1)+(7*2)+(6*1)+(5*9)+(4*4)+(3*9)+(2*4)+(1*1)=125
125 % 10 = 5
So 121949-41-5 is a valid CAS Registry Number.